diff --git a/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncAdapterService.java b/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncAdapterService.java
index 7f75774b..f56109df 100644
--- a/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncAdapterService.java
+++ b/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncAdapterService.java
@@ -73,8 +73,8 @@ public abstract class SyncAdapterService extends Service {
             Notification notify = new NotificationCompat.Builder(getContext())
                     .setSmallIcon(R.drawable.ic_error_light)
                     .setLargeIcon(((BitmapDrawable)getContext().getResources().getDrawable(R.drawable.ic_launcher)).getBitmap())
-                    .setContentTitle("DAVdroid permissions")
-                    .setContentText("Additional permissions are required.")
+                    .setContentTitle(getContext().getString(R.string.sync_error_permissions))
+                    .setContentText(getContext().getString(R.string.sync_error_permissions_text))
                     .setContentIntent(PendingIntent.getActivity(getContext(), 0, intent, PendingIntent.FLAG_CANCEL_CURRENT))
                     .setCategory(NotificationCompat.CATEGORY_ERROR)
                     .setLocalOnly(true)
diff --git a/app/src/main/java/at/bitfire/davdroid/ui/StartupDialogFragment.java b/app/src/main/java/at/bitfire/davdroid/ui/StartupDialogFragment.java
index cbb32c2e..4ebf8562 100644
--- a/app/src/main/java/at/bitfire/davdroid/ui/StartupDialogFragment.java
+++ b/app/src/main/java/at/bitfire/davdroid/ui/StartupDialogFragment.java
@@ -164,10 +164,13 @@ public class StartupDialogFragment extends DialogFragment {
                         .create();
 
             case OPENTASKS_NOT_INSTALLED:
+                StringBuilder builder = new StringBuilder(getString(R.string.startup_opentasks_not_installed_message));
+                if (Build.VERSION.SDK_INT < 23)
+                    builder.append("\n\n").append(getString(R.string.startup_opentasks_reinstall_davdroid));
                 return new AlertDialog.Builder(getActivity())
                         .setIcon(R.drawable.ic_alarm_on_dark)
                         .setTitle(R.string.startup_opentasks_not_installed)
-                        .setMessage(R.string.startup_opentasks_not_installed_message)
+                        .setMessage(builder.toString())
                         .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                             @Override
                             public void onClick(DialogInterface dialog, int which) {
@@ -179,6 +182,8 @@ public class StartupDialogFragment extends DialogFragment {
                                 Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=org.dmfs.tasks"));
                                 if (intent.resolveActivity(getContext().getPackageManager()) != null)
                                     getContext().startActivity(intent);
+                                else
+                                    App.log.warning("No market app available, can't install OpenTasks");
                             }
                         })
                         .setNegativeButton(R.string.startup_dont_show_again, new DialogInterface.OnClickListener() {
diff --git a/app/src/main/res/values-ca/strings.xml b/app/src/main/res/values-ca/strings.xml
index 7307c920..db902400 100644
--- a/app/src/main/res/values-ca/strings.xml
+++ b/app/src/main/res/values-ca/strings.xml
@@ -10,6 +10,7 @@
   <!--DavService-->
   <!--AppSettingsActivity-->
   <!--AccountActivity-->
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_type_email">Entra amb una adreça de correu electrònic</string>
   <string name="login_type_url">Entra amb una URL i un nom d\'usuari</string>
diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 9df6dd21..e98a98e2 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -11,6 +11,7 @@
   <!--DavService-->
   <!--AppSettingsActivity-->
   <!--AccountActivity-->
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_type_email">Přihlášení s emailovou adresou</string>
   <string name="login_type_url">Přihlášení s URL a uživatelským jménem</string>
diff --git a/app/src/main/res/values-da/strings.xml b/app/src/main/res/values-da/strings.xml
index 812d3106..22131ed2 100644
--- a/app/src/main/res/values-da/strings.xml
+++ b/app/src/main/res/values-da/strings.xml
@@ -19,7 +19,6 @@
   <string name="startup_google_play_accounts_removed_message">Under visse tekniske omstændigheder kan DRM fra Play Store bevirke, at alle DAVdroid-konti er væk efter en genstart eller opgradering af DAVdroid. Hvis du er udsat for dette problem (og ellers ikke), opfordres du til at installere DAVDroid JB Workaround\" fra Play Store.</string>
   <string name="startup_google_play_accounts_removed_more_info">Yderligere oplysninger</string>
   <string name="startup_opentasks_not_installed">OpenTasks ikke installeret</string>
-  <string name="startup_opentasks_not_installed_message">OpenTasks-app\'en er ikke installeret eller kan ikke tilgås, så DAVdroid vil ikke være i stand til at opdatere opgavelister. Geninstaller DAVdroid og tilføj dine konti igen efter installation af OpenTasks.</string>
   <string name="startup_opentasks_not_installed_install">Installer OpenTasks</string>
   <!--AboutActivity-->
   <string name="about_license_terms">Licensforhold</string>
@@ -76,6 +75,7 @@
   <string name="account_create_new_address_book">Opret ny adressebog</string>
   <string name="account_refresh_calendar_list">Opdater kalenderliste</string>
   <string name="account_create_new_calendar">Opret ny kalender</string>
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_title">Tilføj konto</string>
   <string name="login_type_email">Log ind med emailadresse</string>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 314efcf7..2fefe491 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -19,7 +19,8 @@
   <string name="startup_google_play_accounts_removed_message">Unter bestimmten Umständen verursacht die zwangsweise Play Store-Verschlüsselung, dass Accounts nach einem Neustart oder einem DAVdroid-Update verschwinden. Installieren Sie \"DAVdroid JB Workaround\", falls Sie von dem Problem betroffen sind.</string>
   <string name="startup_google_play_accounts_removed_more_info">Weitere Infos</string>
   <string name="startup_opentasks_not_installed">OpenTasks nicht installiert</string>
-  <string name="startup_opentasks_not_installed_message">Die OpenTasks-App ist nicht installiert oder DAVdroid hat keine Rechte, um darauf zuzugreifen. Aufgabenlisten werden also nicht synchronisiert. Falls Sie OpenTasks installieren, müssen Sie DAVdroid DANACH NEU INSTALLIEREN und Ihre Konten neu hinzufügen (Android-Bug).</string>
+  <string name="startup_opentasks_not_installed_message">Die OpenTasks-App ist nicht verfügbar; Aufgabenlisten können also nicht synchronisiert werden.</string>
+  <string name="startup_opentasks_reinstall_davdroid">Nach der Installation von OpenTasks muss DAVdroid NEU INSTALLIERT und die Konten neu hinzugefügt werden (Android-Bug).</string>
   <string name="startup_opentasks_not_installed_install">OpenTasks installieren</string>
   <!--AboutActivity-->
   <string name="about_license_terms">Lizenzbedingungen</string>
@@ -76,6 +77,17 @@
   <string name="account_create_new_address_book">Neues Adressbuch erstellen</string>
   <string name="account_refresh_calendar_list">Kalender neu erkennen</string>
   <string name="account_create_new_calendar">Neuen Kalender erstellen</string>
+  <!--PermissionsActivity-->
+  <string name="permissions_title">DAVdroid-Berechtigungen</string>
+  <string name="permissions_calendar">Kalender-Zugriff</string>
+  <string name="permissions_calendar_details">Um CalDAV-Termine mit lokalen Kalendern abzugleichen, benötigt DAVdroid Kalender-Zugriffsrechte.</string>
+  <string name="permissions_calendar_request">Kalender-Zugriff anfordern</string>
+  <string name="permissions_contacts">Adressbuch-Zugriff</string>
+  <string name="permissions_contacts_details">Um CardDAV-Kontakte mit dem lokalen Adressbuch abzugleichen, benötigt DAVdroid Adressbuch-Zugriffsrechte.</string>
+  <string name="permissions_contacts_request">Adressbuch-Zugriff anfordern</string>
+  <string name="permissions_opentasks">OpenTasks-Zugriff</string>
+  <string name="permissions_opentasks_details">Um CalDAV-Aufgaben mit lokalen Aufgabenlisten abzugleichen, benötigt DAVdroid Zugriffsrechte für OpenTasks.</string>
+  <string name="permissions_opentasks_request">OpenTasks-Zugriff anfordern</string>
   <!--AddAccountActivity-->
   <string name="login_title">Konto hinzufügen</string>
   <string name="login_type_email">Mit Email-Adresse anmelden</string>
@@ -139,13 +151,6 @@
     <item>Alle 4 Stunden</item>
     <item>Täglich</item>
   </string-array>
-  <string name="settings_sync_time_range_past">Abrufbeschränkung vergangener Termine</string>
-  <string name="settings_sync_time_range_past_none">Alle Termine werden synchronisiert</string>
-  <plurals name="settings_sync_time_range_past_days">
-    <item quantity="one">Termine, die mehr als einen Tag in der Vergangenheit liegen, werden ignoriert</item>
-    <item quantity="other">Termine, die mehr als %d Tage in der Vergangenheit liegen, werden ignoriert</item>
-  </plurals>
-  <string name="settings_sync_time_range_past_message">Termine, die mehr als diese Anzahl von Tagen in der Vergangenheit liegen, werden ignoriert (kann 0 sein). Feld leer lassen, um alle Termine zu synchronisieren.</string>
   <string name="settings_sync_wifi_only">Nur über WLAN synchronisieren</string>
   <string name="settings_sync_wifi_only_on">Synchronisierung nur bei aktiver WLAN-Verbindung</string>
   <string name="settings_sync_wifi_only_off">Verbindungstyp wird nicht beachtet</string>
@@ -153,6 +158,14 @@
   <string name="settings_sync_wifi_only_ssid_on">Synchronisierung nur über %s</string>
   <string name="settings_sync_wifi_only_ssid_off">Alle WLAN-Verbindungen können verwendet werden</string>
   <string name="settings_sync_wifi_only_ssid_message">Name eines WLANs (SSID) eingeben, um Synchronisierung auf dieses WLAN zu beschränken. Leer lassen, um alle WLAN-Verbindungen zuzulassen.</string>
+  <string name="settings_caldav">CalDAV</string>
+  <string name="settings_sync_time_range_past">Abrufbeschränkung vergangener Termine</string>
+  <string name="settings_sync_time_range_past_none">Alle Termine werden synchronisiert</string>
+  <plurals name="settings_sync_time_range_past_days">
+    <item quantity="one">Termine, die mehr als einen Tag in der Vergangenheit liegen, werden ignoriert</item>
+    <item quantity="other">Termine, die mehr als %d Tage in der Vergangenheit liegen, werden ignoriert</item>
+  </plurals>
+  <string name="settings_sync_time_range_past_message">Termine, die mehr als diese Anzahl von Tagen in der Vergangenheit liegen, werden ignoriert (kann 0 sein). Feld leer lassen, um alle Termine zu synchronisieren.</string>
   <string name="settings_manage_calendar_colors">Kalenderfarben verwalten</string>
   <string name="settings_manage_calendar_colors_on">Kalenderfarben werden von DAVdroid verwaltet</string>
   <string name="settings_manage_calendar_colors_off">DAVdroid setzt keine Kalenderfarben</string>
@@ -187,6 +200,8 @@
   <string name="exception_show_details">Details anzeigen</string>
   <!--sync errors and DebugInfoActivity-->
   <string name="debug_info_title">Informationen zur Fehlersuche</string>
+  <string name="sync_error_permissions">DAVdroid-Berechtigungen</string>
+  <string name="sync_error_permissions_text">Zusätzliche Berechtigungen benötigt</string>
   <string name="sync_error_calendar">Kalender-Synchronisierung fehlgeschlagen (%s)</string>
   <string name="sync_error_contacts">Adressbuch-Synchronisierung fehlgeschlagen (%s)</string>
   <string name="sync_error_tasks">Aufgaben-Synchronisierung fehlgeschlagen (%s)</string>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index a746ec3f..bea338bf 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -18,7 +18,6 @@
   <string name="startup_google_play_accounts_removed_message">Bajo ciertas condiciones, el DRM de Play Store puede causar que todas las cuentas de DAVdroid se desconfiguren tras un reinicio o una actualización de DAVdroid. Si esto le afecta (y sólo en ese caso), por favor, instale \"DAVdroid JB Workaround\" desde Play Store.</string>
   <string name="startup_google_play_accounts_removed_more_info">Más información</string>
   <string name="startup_opentasks_not_installed">OpenTasks no está instalado</string>
-  <string name="startup_opentasks_not_installed_message">La aplicación OpenTasks no está instalada o accesible, por lo que DAVdroid no podrá sincronizar las listas de tareas. Reinstale DAVdroid y añada sus cuentas de nuevo después de instalar OpenTasks.</string>
   <string name="startup_opentasks_not_installed_install">Instalar OpenTasks</string>
   <!--AboutActivity-->
   <!--global settings-->
@@ -56,6 +55,7 @@
   <string name="account_create_new_address_book">Crear nueva lista de contactos</string>
   <string name="account_refresh_calendar_list">Refrescar calendario</string>
   <string name="account_create_new_calendar">Crear nuevo calendario</string>
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_title">Añadir cuenta</string>
   <string name="login_type_email">Acceder con cuenta de correo</string>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 341cdf93..dd5e7d11 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -19,7 +19,6 @@
   <string name="startup_google_play_accounts_removed_message">Dans certaines conditions, Play Store DRM peut provoquer la disparition de tous les comptes DAVdroid après un redémarrage ou après la mise à niveau de DAVdroid. Si vous êtes concerné par ce problème (et seulement alors), s\'il vous plaît installer \"DAVdroid JB Solution\" du Play Store.</string>
   <string name="startup_google_play_accounts_removed_more_info">Plus d\'information</string>
   <string name="startup_opentasks_not_installed">OpenTasks n\'est pas installé</string>
-  <string name="startup_opentasks_not_installed_message">L\'application OpenTasks n\'est pas installé ou pas accessible, donc DAVdroid ne pourra pas synchroniser vos tâches. Réinstaller DAVdroid et ajouter à nouveau votre compte après l\'installation d\'OpenTasks.</string>
   <string name="startup_opentasks_not_installed_install">Installer OpenTasks</string>
   <!--AboutActivity-->
   <string name="about_license_terms">Conditions d\'utilisation</string>
@@ -75,6 +74,7 @@
   <string name="account_create_new_address_book">Créer un nouveau carnet d\'adresse</string>
   <string name="account_refresh_calendar_list">Actualiser le calendrier</string>
   <string name="account_create_new_calendar">Créer un nouveau calendrier</string>
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_title">Ajouter un compte</string>
   <string name="login_type_email">Connexion avec une adresse email</string>
@@ -138,6 +138,14 @@
     <item>Toutes les 4 heures</item>
     <item>Une fois par jour</item>
   </string-array>
+  <string name="settings_sync_wifi_only">Synchronisation en Wifi seulement</string>
+  <string name="settings_sync_wifi_only_on">La synchronisation est limitée aux connexions WiFi</string>
+  <string name="settings_sync_wifi_only_off">Le type de connexion n\'est pas pris en charge</string>
+  <string name="settings_sync_wifi_only_ssid">Restriction WiFi SSID</string>
+  <string name="settings_sync_wifi_only_ssid_on">Sera seulement synchroniser avec %s</string>
+  <string name="settings_sync_wifi_only_ssid_off">Toutes les connexions WiFi peuvent être utilisées</string>
+  <string name="settings_sync_wifi_only_ssid_message">Entrez le nom d\'un réseau WiFi (SSID) pour restreindre la synchronisation à ce réseau, ou laisser vide pour autoriser toutes les connexions WiFi.</string>
+  <string name="settings_caldav">CalDAV</string>
   <string name="settings_sync_time_range_past">Limite des événements passés</string>
   <string name="settings_sync_time_range_past_none">Tous les événements seront synchronisés</string>
   <plurals name="settings_sync_time_range_past_days">
diff --git a/app/src/main/res/values-hu/strings.xml b/app/src/main/res/values-hu/strings.xml
index 60b2bce9..235080d0 100644
--- a/app/src/main/res/values-hu/strings.xml
+++ b/app/src/main/res/values-hu/strings.xml
@@ -19,7 +19,6 @@
   <string name="startup_google_play_accounts_removed_message">Bizonyos körülmények között  a Play Áruház DRM okozhatja azt, hogy az eszköz újraindítását vagy a DAVdroid frissítését követően a DAVdroid fiókok eltűnnek.  Amennyiben (és csak amennyiben) érinti Önt ez a probléma, telepítse a \"DAVdroid JB Workaround\" alkalmazást Play Áruházból.</string>
   <string name="startup_google_play_accounts_removed_more_info">További információk</string>
   <string name="startup_opentasks_not_installed">Az OpenTasks nincs telepítve</string>
-  <string name="startup_opentasks_not_installed_message">Az OpenTasks alkalmazás nincs telepítve vagy nem elérhető, ezért a DAVdroid nem lesz képes a feladatlisták szinkronizálására.  Az OpenTasks telepítése után telepítse újra a DAVdroid-ot majd hozza létre a fiókot újra.</string>
   <string name="startup_opentasks_not_installed_install">Az OpenTasks telepítése</string>
   <!--AboutActivity-->
   <string name="about_license_terms">Licencfeltételek</string>
@@ -76,6 +75,7 @@
   <string name="account_create_new_address_book">Új címjegyzék létrehozása</string>
   <string name="account_refresh_calendar_list">Naptárlista frissítése</string>
   <string name="account_create_new_calendar">Új naptár létrehozása</string>
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_title">Fiók hozzáadása</string>
   <string name="login_type_email">Bejelentkezés email cím segítségével</string>
@@ -139,13 +139,6 @@
     <item>4 óránként</item>
     <item>Naponta</item>
   </string-array>
-  <string name="settings_sync_time_range_past">Múltbéli események időkorlátja</string>
-  <string name="settings_sync_time_range_past_none">Minden esemény szinkronizálása</string>
-  <plurals name="settings_sync_time_range_past_days">
-    <item quantity="one">Az egy napnál régebbi események figyelmen kívül hagyása</item>
-    <item quantity="other">A %d napnál régebbi események figyelmen kívül hagyása</item>
-  </plurals>
-  <string name="settings_sync_time_range_past_message">Az ennyi napnál (lehet 0) régebbi események figyelmen kívül lesznek hagyva.  Hagyja üresen, ha minden múltbéli eseményt szinkronizálni akar.</string>
   <string name="settings_sync_wifi_only">Szinkronizálás csak WIFI-n</string>
   <string name="settings_sync_wifi_only_on">Csak WIFI kapcsolat keresztül történjen szinkronizálás</string>
   <string name="settings_sync_wifi_only_off">Szinkronizálás a kapcsolat típusától függetlenül</string>
@@ -153,6 +146,13 @@
   <string name="settings_sync_wifi_only_ssid_on">Szinkronizálás csak a(z) %s hálózatra kapcsolódva</string>
   <string name="settings_sync_wifi_only_ssid_off">Szinkronizálás bármely WIFI hálózaton</string>
   <string name="settings_sync_wifi_only_ssid_message">Adja meg a WIFI hálózat nevét (SSID) a szinkronizálás egy hálózatra való korlátozához, vagy hagyja üresen, ha nem akar ilyen szűkítést.</string>
+  <string name="settings_sync_time_range_past">Múltbéli események időkorlátja</string>
+  <string name="settings_sync_time_range_past_none">Minden esemény szinkronizálása</string>
+  <plurals name="settings_sync_time_range_past_days">
+    <item quantity="one">Az egy napnál régebbi események figyelmen kívül hagyása</item>
+    <item quantity="other">A %d napnál régebbi események figyelmen kívül hagyása</item>
+  </plurals>
+  <string name="settings_sync_time_range_past_message">Az ennyi napnál (lehet 0) régebbi események figyelmen kívül lesznek hagyva.  Hagyja üresen, ha minden múltbéli eseményt szinkronizálni akar.</string>
   <string name="settings_manage_calendar_colors">Naptárszínek kezelése</string>
   <string name="settings_manage_calendar_colors_on">A naptárszíneket a DAVdroid kezeli</string>
   <string name="settings_manage_calendar_colors_off">A naptárszíneket nem a DAVdroid kezeli</string>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
new file mode 100644
index 00000000..0c8b7c19
--- /dev/null
+++ b/app/src/main/res/values-it/strings.xml
@@ -0,0 +1,59 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<resources xmlns:tools="http://schemas.android.com/tools">
+  <!--common strings-->
+  <string name="app_name">DAVdroid</string>
+  <string name="help">Aiuto</string>
+  <string name="manage_accounts">Gestione account</string>
+  <string name="please_wait">Attendere prego …</string>
+  <!--startup dialogs-->
+  <string name="startup_google_play_accounts_removed_more_info">Maggiori informazioni</string>
+  <string name="startup_opentasks_not_installed">OpenTasks non installata</string>
+  <string name="startup_opentasks_not_installed_install">Installa OpenTasks</string>
+  <!--AboutActivity-->
+  <string name="about_license_terms">Termini di licenza</string>
+  <!--global settings-->
+  <!--AccountsActivity-->
+  <string name="navigation_drawer_about">Informazioni / Licenza</string>
+  <string name="navigation_drawer_settings">Impostazioni</string>
+  <string name="navigation_drawer_news_updates">Notizie &amp; aggiornamenti</string>
+  <string name="navigation_drawer_external_links">Link esterni</string>
+  <string name="navigation_drawer_website">Sito web</string>
+  <string name="navigation_drawer_faq">Domande Frequenti</string>
+  <string name="navigation_drawer_forums">Comunità</string>
+  <string name="navigation_drawer_donate">Donazione</string>
+  <!--DavService-->
+  <!--AppSettingsActivity-->
+  <string name="app_settings">Impostazioni</string>
+  <string name="app_settings_user_interface">Interfaccia utente</string>
+  <string name="app_settings_security">Sicurezza</string>
+  <!--AccountActivity-->
+  <string name="account_synchronize_now">Sincronizza adesso</string>
+  <string name="account_synchronizing_now">Sincronizzazione in corso</string>
+  <string name="account_settings">Impostazioni account</string>
+  <string name="account_delete">Elimina account</string>
+  <string name="account_refresh_calendar_list">Aggiorna lista calendari</string>
+  <string name="account_create_new_calendar">Crea nuovo calendario</string>
+  <!--PermissionsActivity-->
+  <!--AddAccountActivity-->
+  <string name="login_title">Aggiungi account</string>
+  <string name="login_email_address">Indirizzo email</string>
+  <string name="login_password">Password</string>
+  <string name="login_user_name">Nome utente</string>
+  <string name="login_back">Indietro</string>
+  <string name="login_create_account">Crea account</string>
+  <string name="login_account_name">Nome account</string>
+  <!--AccountSettingsActivity-->
+  <string name="settings_title">Impostazioni: %s</string>
+  <string name="settings_authentication">Autenticazione</string>
+  <string name="settings_username">Nome utente</string>
+  <string name="settings_enter_username">Inserisci nome utente:</string>
+  <string name="settings_password">Password</string>
+  <string name="settings_sync_summary_manually">Solo manualmente</string>
+  <!--collection management-->
+  <!--ExceptionInfoFragment-->
+  <string name="exception">Si è verificato un errore.</string>
+  <string name="exception_httpexception">Si è verificato un errore HTTP.</string>
+  <string name="exception_ioexception">Si è verificato un errore di I/O.</string>
+  <string name="exception_show_details">Mostra dettagli</string>
+  <!--sync errors and DebugInfoActivity-->
+</resources>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index dc2e86bc..74fc4a92 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -19,7 +19,6 @@
   <string name="startup_google_play_accounts_removed_message">特定の条件下で、DAVdroid を再起動後またはアップグレードした後、Play ストア DRM によりすべての DAVdroid アカウントがなくなる可能性があります。この問題の影響を受けている場合 (のみ)、Play ストアから「DAVdroid JB 回避策」をインストールしてください。</string>
   <string name="startup_google_play_accounts_removed_more_info">追加情報</string>
   <string name="startup_opentasks_not_installed">OpenTasks がインストールされていません</string>
-  <string name="startup_opentasks_not_installed_message">OpenTasks アプリがインストールされていないか、アクセスできないため、DAVdroid は、タスクリストを同期することができません。 OpenTasks をインストールした後、DAVdroidを再インストールして、再度アカウントを追加してください。</string>
   <string name="startup_opentasks_not_installed_install">OpenTasks をインストール</string>
   <!--AboutActivity-->
   <string name="about_license_terms">ライセンス規約</string>
@@ -75,6 +74,7 @@
   <string name="account_create_new_address_book">新しいアドレス帳を作成</string>
   <string name="account_refresh_calendar_list">カレンダーリストを更新</string>
   <string name="account_create_new_calendar">新しいカレンダーを作成</string>
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_title">アカウントを追加</string>
   <string name="login_type_email">メールアドレスでログイン</string>
@@ -138,6 +138,13 @@
     <item>4 時間ごと</item>
     <item>1 日 1 回</item>
   </string-array>
+  <string name="settings_sync_wifi_only">WiFi でのみ同期</string>
+  <string name="settings_sync_wifi_only_on">同期は WiFi 接続に制限されます</string>
+  <string name="settings_sync_wifi_only_off">接続の種類は考慮されません</string>
+  <string name="settings_sync_wifi_only_ssid">WiFi SSID 制限</string>
+  <string name="settings_sync_wifi_only_ssid_on">%s でのみ同期します</string>
+  <string name="settings_sync_wifi_only_ssid_off">すべての WiFi 接続を使用することができます</string>
+  <string name="settings_sync_wifi_only_ssid_message">このネットワークで同期を制限する WiFi ネットワーク (SSID) の名前を入力してください。すべての WiFi 接続は空白のままにします。</string>
   <string name="settings_sync_time_range_past">過去イベントの時間限度</string>
   <string name="settings_sync_time_range_past_none">すべてのイベントが同期されます</string>
   <plurals name="settings_sync_time_range_past_days">
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
index 3396b7c3..8f8d1edd 100644
--- a/app/src/main/res/values-nl/strings.xml
+++ b/app/src/main/res/values-nl/strings.xml
@@ -19,7 +19,6 @@
   <string name="startup_google_play_accounts_removed_message">Onder bepaalde omstandigheden, kan Play Store DRM ervoor zorgen dat accounts kwijt zijn na een herstart of na een DAVdroid update. Als dit probleem zich bij je voordoet (en alleen dan), Installeer dan \"DAVdroid JB Workaround\" vanuit de Play Store</string>
   <string name="startup_google_play_accounts_removed_more_info">Meer informatie</string>
   <string name="startup_opentasks_not_installed">OpenTasks niet geinstalleerd</string>
-  <string name="startup_opentasks_not_installed_message">De OpenTasks app is niet geinstalleerd of niet toegankelijk, daarom kan DAVdroid geen takenlijsten synchronizeren. Herinstalleer DAVdroid en voeg je accounts opnieuw toe na het installeren van OpenTasks.</string>
   <string name="startup_opentasks_not_installed_install">OpenTasks installeren</string>
   <!--AboutActivity-->
   <string name="about_license_terms">Licentie voorwaarden</string>
@@ -72,6 +71,7 @@
   <string name="account_create_new_address_book">Maak een nieuw adresboek</string>
   <string name="account_refresh_calendar_list">Agenda\'s vernieuwen</string>
   <string name="account_create_new_calendar">Maak een nieuwe agenda</string>
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_title">Account toevoegen</string>
   <string name="login_type_email">Inloggen met e-mailadres</string>
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index 978b6115..31e9b56c 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -11,6 +11,7 @@
   <!--DavService-->
   <!--AppSettingsActivity-->
   <!--AccountActivity-->
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_type_email">Logowanie za pomocą adresu e-mail</string>
   <string name="login_type_url">Logowanie za pomocą adresu URL i nazwy użytkownika</string>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 2595f898..f9a7c401 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -19,7 +19,6 @@
   <string name="startup_google_play_accounts_removed_message">Sob certas condições, o DRM da Play Store pode fazer com que todas as contas DAVdroid sejam perdidas depois de uma reinicialização ou atualização do DAVdroid. Se você for afetado por esse problema, instale o \"DAVdroid JB Workaround\" a partir da Play Store.</string>
   <string name="startup_google_play_accounts_removed_more_info">Mais informações</string>
   <string name="startup_opentasks_not_installed">O OpenTasks não está instalado</string>
-  <string name="startup_opentasks_not_installed_message">O aplicativo OpenTasks não está instalado ou está inacessível, não sendo possível sincronizar suas listas de tarefas com o DAVdroid. Reinstale o DAVdroid e então adicione suas contas novamente depois da instalação do OpenTasks.</string>
   <string name="startup_opentasks_not_installed_install">Instalar o OpenTasks</string>
   <!--AboutActivity-->
   <string name="about_license_terms">Termos da Licença</string>
@@ -76,6 +75,17 @@
   <string name="account_create_new_address_book">Criar novo livro de endereços</string>
   <string name="account_refresh_calendar_list">Atualizar lista de calendários</string>
   <string name="account_create_new_calendar">Criar novo calendário</string>
+  <!--PermissionsActivity-->
+  <string name="permissions_title">Permissões do DAVdroid</string>
+  <string name="permissions_calendar">Permissões do calendário</string>
+  <string name="permissions_calendar_details">Para sincronizar os eventos CalDAV com seus calendários locais, o DAVdroid precisa acessar seus calendários.</string>
+  <string name="permissions_calendar_request">Solicitar permissão do calendário</string>
+  <string name="permissions_contacts">Permissões dos contados</string>
+  <string name="permissions_contacts_details">Para sincronizar livros de endereços CardDAV com seus contatos locais, o DAVdroid precisa acessar seus contatos.</string>
+  <string name="permissions_contacts_request">Solicitar permissão dos contatos</string>
+  <string name="permissions_opentasks">Permissões do OpenTasks</string>
+  <string name="permissions_opentasks_details">Para sincronizar tarefas CalDAV com suas listas de tarefas locais, o DAVdroid precisa acessar o OpenTasks.</string>
+  <string name="permissions_opentasks_request">Solicitar permissão do OpenTasks</string>
   <!--AddAccountActivity-->
   <string name="login_title">Adicionar conta</string>
   <string name="login_type_email">Autenticação com endereço de e-mail</string>
@@ -139,6 +149,14 @@
     <item>A cada 4 horas</item>
     <item>Uma vez por dia</item>
   </string-array>
+  <string name="settings_sync_wifi_only">Sincronizar apenas por Wi-Fi</string>
+  <string name="settings_sync_wifi_only_on">A sincronização está restrita a conexões Wi-Fi</string>
+  <string name="settings_sync_wifi_only_off">O tipo de conexão não é considerado</string>
+  <string name="settings_sync_wifi_only_ssid">Restrição de SSID Wi-Fi</string>
+  <string name="settings_sync_wifi_only_ssid_on">Sincronizará apenas com %s</string>
+  <string name="settings_sync_wifi_only_ssid_off">Todas as conexões Wi-Fi podem ser utilizadas</string>
+  <string name="settings_sync_wifi_only_ssid_message">Informe o nome da rede Wi-Fi (SSID) que será usada para sincronização ou deixe em branco para usar qualquer conexão Wi-Fi.</string>
+  <string name="settings_caldav">CalDAV</string>
   <string name="settings_sync_time_range_past">Limite para eventos passados</string>
   <string name="settings_sync_time_range_past_none">Todos os eventos serão sincronizados</string>
   <plurals name="settings_sync_time_range_past_days">
@@ -146,14 +164,7 @@
     <item quantity="other">Eventos que ocorreram a mais de %d dias serão ignorados</item>
   </plurals>
   <string name="settings_sync_time_range_past_message">Os eventos que ocorreram antes desse número de dias serão ignorados (pode ser 0). Deixe em branco para sincronizar todos os eventos.</string>
-  <string name="settings_sync_wifi_only">Sincronizar apenas por Wi-Fi</string>
-  <string name="settings_sync_wifi_only_on">A sincronização está restrita a conexões Wi-Fi</string>
-  <string name="settings_sync_wifi_only_off">O tipo de conexão não é considerado</string>
-  <string name="settings_sync_wifi_only_ssid">Restrição de SSID Wi-Fi</string>
-  <string name="settings_sync_wifi_only_ssid_on">Sincronizará apenas com %s</string>
-  <string name="settings_sync_wifi_only_ssid_off">Todas as conexões Wi-Fi podem ser utilizada</string>
-  <string name="settings_sync_wifi_only_ssid_message">Informe o nome da rede Wi-Fi (SSID) que será usada para sincronização ou deixe em branco para usar qualquer conexão Wi-Fi.</string>
-  <string name="settings_manage_calendar_colors">Gerenciar as cores do calendário</string>
+  <string name="settings_manage_calendar_colors">Gerenciar cores dos calendários</string>
   <string name="settings_manage_calendar_colors_on">As cores do calendários são gerenciadas pelo DAVdroid</string>
   <string name="settings_manage_calendar_colors_off">As cores do calendários não são definidas pelo DAVdroid</string>
   <string name="settings_version_update">Atualização da versão do DAVdroid</string>
diff --git a/app/src/main/res/values-pt/strings.xml b/app/src/main/res/values-pt/strings.xml
index 6e846e34..b05daefc 100644
--- a/app/src/main/res/values-pt/strings.xml
+++ b/app/src/main/res/values-pt/strings.xml
@@ -10,6 +10,7 @@
   <!--DavService-->
   <!--AppSettingsActivity-->
   <!--AccountActivity-->
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_type_email">Login com seu enderço de email</string>
   <string name="login_type_url">Login com URL e nome do usuário</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index f50e44e4..da79cf74 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -11,6 +11,7 @@
   <!--DavService-->
   <!--AppSettingsActivity-->
   <!--AccountActivity-->
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_type_email">Вход по адресу email</string>
   <string name="login_type_url">Вход через URL  и имя пользователя</string>
diff --git a/app/src/main/res/values-sr/strings.xml b/app/src/main/res/values-sr/strings.xml
index dbba7ce8..be9264a4 100644
--- a/app/src/main/res/values-sr/strings.xml
+++ b/app/src/main/res/values-sr/strings.xml
@@ -19,10 +19,10 @@
   <string name="startup_google_play_accounts_removed_message">Под одређеним околностима ДРМ Плеј продавнице може да узрокује да сви налози ДАВдроида нестане након рестарта или ажурирања ДАВдроида. Ако и само ако имате овај проблем, инсталирајте „DAVdroid JB Workaround“ са Плеј продавнице.</string>
   <string name="startup_google_play_accounts_removed_more_info">Још информација</string>
   <string name="startup_opentasks_not_installed">Отворени задаци нису инсталирани</string>
-  <string name="startup_opentasks_not_installed_message">Отворени задаци нису инсталирани или доступни, па ДАВдроид неће моћи да синхронизује листе задатака. Поново инсталирајте ДАВдроид и поново додајте ваше налоге након инсталације Отворених задатака.</string>
   <string name="startup_opentasks_not_installed_install">Инсталирај Отворене задатке</string>
   <!--AboutActivity-->
   <string name="about_license_terms">Услови лиценце</string>
+  <string name="about_license_info_no_warranty">Овај програм НЕМА НИКАКВЕ ГАРАНЦИЈЕ. Бесплатан је софтвер којег можете слободно да делите под одређеним условима.</string>
   <!--global settings-->
   <string name="logging_davdroid_file_logging">ДАВдроид евиденција</string>
   <string name="logging_to_external_storage">Уписивање евиденције у спољашње складиште: %s</string>
@@ -76,6 +76,17 @@
   <string name="account_create_new_address_book">Направи нови адресар</string>
   <string name="account_refresh_calendar_list">Освежи списак календара</string>
   <string name="account_create_new_calendar">Направи нови календар</string>
+  <!--PermissionsActivity-->
+  <string name="permissions_title">ДАВдроид дозволе</string>
+  <string name="permissions_calendar">Дозволе за календар</string>
+  <string name="permissions_calendar_details">Да би синхронизовао КалДАВ догађаје са вашим локалним календарима, ДАВдроиду треба приступ вашим календарима.</string>
+  <string name="permissions_calendar_request">Захтевај дозволе за календар</string>
+  <string name="permissions_contacts">Дозволе за контакте</string>
+  <string name="permissions_contacts_details">Да би синхронизовао КардДАВ адресаре са вашим локалним контактима, ДАВдроиду треба приступ вашим контактима.</string>
+  <string name="permissions_contacts_request">Захтевај дозволе за контакте</string>
+  <string name="permissions_opentasks">Дозволе за задатке</string>
+  <string name="permissions_opentasks_details">Да би синхронизовао КалДАВ задатке са вашим локалним листама задатака, ДАВдроиду треба приступ Задацима.</string>
+  <string name="permissions_opentasks_request">Захтевај дозволе за задатке</string>
   <!--AddAccountActivity-->
   <string name="login_title">Додај налог</string>
   <string name="login_type_email">Пријавите се адресом е-поште</string>
@@ -139,6 +150,14 @@
     <item>Свака 4 сата</item>
     <item>Једном дневно</item>
   </string-array>
+  <string name="settings_sync_wifi_only">Само преко бежичног</string>
+  <string name="settings_sync_wifi_only_on">Синхронизовање само преко бежичних мрежа</string>
+  <string name="settings_sync_wifi_only_off">Тип везе није узет у обзир</string>
+  <string name="settings_sync_wifi_only_ssid">Ограничења ССИД-а бежичних</string>
+  <string name="settings_sync_wifi_only_ssid_on">Синхронизовање само преко %s</string>
+  <string name="settings_sync_wifi_only_ssid_off">Коришћење свих бежичних мрежа</string>
+  <string name="settings_sync_wifi_only_ssid_message">Унесите назив бежичне мреже (њен ССИД) да бисте ограничили синхронизацију само на ту мрежу, или оставите празно за синхронизовање преко било које бежичне мреже.</string>
+  <string name="settings_caldav">КалДАВ</string>
   <string name="settings_sync_time_range_past">Ограничење догађаја у прошлости</string>
   <string name="settings_sync_time_range_past_none">Сви догађаји се синхронизују</string>
   <plurals name="settings_sync_time_range_past_days">
diff --git a/app/src/main/res/values-tr-rTR/strings.xml b/app/src/main/res/values-tr-rTR/strings.xml
index ba6815bb..e7d685a1 100644
--- a/app/src/main/res/values-tr-rTR/strings.xml
+++ b/app/src/main/res/values-tr-rTR/strings.xml
@@ -11,6 +11,7 @@
   <!--DavService-->
   <!--AppSettingsActivity-->
   <!--AccountActivity-->
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_type_email">Eposta adresi ile giriş yap</string>
   <string name="login_type_url">URL ve kullanıcı adı ile giriş yap</string>
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index a1f40505..b82df3ac 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -10,6 +10,7 @@
   <!--DavService-->
   <!--AppSettingsActivity-->
   <!--AccountActivity-->
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_type_email">Увійти за допомогою електронної пошти</string>
   <string name="login_type_url">Увійти за допомогою URL та імені користувача</string>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 895c3395..b3a595b6 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -19,7 +19,6 @@
   <string name="startup_google_play_accounts_removed_message">在部分情况下，Play 商店的 DRM 可能会导致所有 DAVdroid 账户在设备重启或升级 DAVdroid 后消失。如果你遇到了该问题（并且只有这一问题），请从 Play 商店安装“DAVdroid JB Workaround”。</string>
   <string name="startup_google_play_accounts_removed_more_info">更多信息</string>
   <string name="startup_opentasks_not_installed">OpenTasks 未安装</string>
-  <string name="startup_opentasks_not_installed_message">OpenTasks 应用未安装或不可见，因此 DAVdroid 无法同步任务列表。请在安装 OpenTasks 后，重新安装 DAVdroid，再增加账户。</string>
   <string name="startup_opentasks_not_installed_install">安装 OpenTasks</string>
   <!--AboutActivity-->
   <string name="about_license_terms">许可协议</string>
@@ -75,6 +74,7 @@
   <string name="account_create_new_address_book">创建通讯录</string>
   <string name="account_refresh_calendar_list">刷新日历列表</string>
   <string name="account_create_new_calendar">创建日历</string>
+  <!--PermissionsActivity-->
   <!--AddAccountActivity-->
   <string name="login_title">增加账户</string>
   <string name="login_type_email">使用邮箱地址登录</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 58a273b9..939d464e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -29,7 +29,8 @@
     <string name="startup_google_play_accounts_removed_message">Under certain conditions, Play Store DRM may cause all DAVdroid accounts to be gone after a reboot or after upgrading DAVdroid. If you\'re affected by this problem (and only then), please install \"DAVdroid JB Workaround\" from Play Store.</string>
     <string name="startup_google_play_accounts_removed_more_info">More information</string>
     <string name="startup_opentasks_not_installed">OpenTasks not installed</string>
-    <string name="startup_opentasks_not_installed_message">The OpenTasks app is not installed or not accessible, so DAVdroid won\'t be able to synchronize task lists. Re-install DAVdroid and then add your accounts again after installing OpenTasks.</string>
+    <string name="startup_opentasks_not_installed_message">The OpenTasks app is not available, so DAVdroid won\'t be able to synchronize task lists.</string>
+    <string name="startup_opentasks_reinstall_davdroid">After installing OpenTasks, you have to RE-INSTALL DAVdroid and add your accounts again (Android bug).</string>
     <string name="startup_opentasks_not_installed_install">Install OpenTasks</string>
 
     <!-- AboutActivity -->
@@ -223,6 +224,8 @@
 
     <!-- sync errors and DebugInfoActivity -->
     <string name="debug_info_title">Debug info</string>
+    <string name="sync_error_permissions">DAVdroid permissions</string>
+    <string name="sync_error_permissions_text">Additional permissions required</string>
     <string name="sync_error_calendar">Calendar synchronization failed (%s)</string>
     <string name="sync_error_contacts">Address book synchronization failed (%s)</string>
     <string name="sync_error_tasks">Task synchronization failed (%s)</string>
diff --git a/scripts/fetch-translations.sh b/scripts/fetch-translations.sh
index 399fd6b0..11f69022 100755
--- a/scripts/fetch-translations.sh
+++ b/scripts/fetch-translations.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 declare -A android
-android=([ca]=ca [cs]=cs [da]=da [de]=de [es]=es [fr]=fr [hu]=hu [ja]=ja [nl]=nl [pl]=pl [pt]=pt [pt_BR]=pt-rBR [ru]=ru [sr]=sr [tr_TR]=tr-rTR [uk]=uk [zh_CN]=zh-rCN)
+android=([ca]=ca [cs]=cs [da]=da [de]=de [es]=es [fr]=fr [hu]=hu [it]=it [ja]=ja [nl]=nl [pl]=pl [pt]=pt [pt_BR]=pt-rBR [ru]=ru [sr]=sr [tr_TR]=tr-rTR [uk]=uk [zh_CN]=zh-rCN)
 
 for lang in ${!android[@]}
 do