diff --git a/app/src/main/res/values-af-rZA/strings.xml b/app/src/main/res/values-af-rZA/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-af-rZA/strings.xml
+++ b/app/src/main/res/values-af-rZA/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-ar-rSA/strings.xml b/app/src/main/res/values-ar-rSA/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-ar-rSA/strings.xml
+++ b/app/src/main/res/values-ar-rSA/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-ca-rES/strings.xml b/app/src/main/res/values-ca-rES/strings.xml
index c988100..773cd8d 100644
--- a/app/src/main/res/values-ca-rES/strings.xml
+++ b/app/src/main/res/values-ca-rES/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-cs-rCZ/strings.xml b/app/src/main/res/values-cs-rCZ/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-cs-rCZ/strings.xml
+++ b/app/src/main/res/values-cs-rCZ/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-da-rDK/strings.xml b/app/src/main/res/values-da-rDK/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-da-rDK/strings.xml
+++ b/app/src/main/res/values-da-rDK/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-de-rDE/strings.xml b/app/src/main/res/values-de-rDE/strings.xml
index c0f04d3..7ad47bc 100644
--- a/app/src/main/res/values-de-rDE/strings.xml
+++ b/app/src/main/res/values-de-rDE/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-el-rGR/strings.xml b/app/src/main/res/values-el-rGR/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-el-rGR/strings.xml
+++ b/app/src/main/res/values-el-rGR/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-es-rES/strings.xml b/app/src/main/res/values-es-rES/strings.xml
index 5f59a45..9070030 100644
--- a/app/src/main/res/values-es-rES/strings.xml
+++ b/app/src/main/res/values-es-rES/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Los artículos se guardarán en la memoria del dispositivo y se utilizarán para el uso sin conexión.</string>
     <string name="pref_switch_items_caching">Guardar elementos para uso sin conexión</string>
     <string name="no_network_connectivity">Sin conexión!</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-fi-rFI/strings.xml b/app/src/main/res/values-fi-rFI/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-fi-rFI/strings.xml
+++ b/app/src/main/res/values-fi-rFI/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-fr-rFR/strings.xml b/app/src/main/res/values-fr-rFR/strings.xml
index f1d196d..8b8dfb6 100644
--- a/app/src/main/res/values-fr-rFR/strings.xml
+++ b/app/src/main/res/values-fr-rFR/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Les articles seront enregistrés et l\'application sera utilisable hors ligne.</string>
     <string name="pref_switch_items_caching">Sauvegarder les articles pour une utilisation hors ligne</string>
     <string name="no_network_connectivity">Hors connexion !</string>
+    <string name="pref_switch_periodic_refresh">Synchroniser les articles</string>
+    <string name="pref_switch_periodic_refresh_off">Les articles ne seront pas synchronisés en arrière plan</string>
+    <string name="pref_switch_periodic_refresh_on">Articles seront périodiquement synchronisées</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Interval de synchronisation ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Synchroniser uniquement lorsque le téléphone est en charge</string>
+    <string name="loading_notification_title">Chargement ...</string>
+    <string name="loading_notification_text">Selfoss synchronise vos articles</string>
+    <string name="notification_channel_sync">Notification de synchronisation</string>
 </resources>
diff --git a/app/src/main/res/values-gl-rES/strings.xml b/app/src/main/res/values-gl-rES/strings.xml
index 5c093d3..18d227f 100644
--- a/app/src/main/res/values-gl-rES/strings.xml
+++ b/app/src/main/res/values-gl-rES/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Os artigos gardaranse na memoria do dispositivo e estarán dispoñibles sen conexión.</string>
     <string name="pref_switch_items_caching">Gardar elementos para uso sen conexión</string>
     <string name="no_network_connectivity">Non conectado!</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-hu-rHU/strings.xml b/app/src/main/res/values-hu-rHU/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-hu-rHU/strings.xml
+++ b/app/src/main/res/values-hu-rHU/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-in-rID/strings.xml b/app/src/main/res/values-in-rID/strings.xml
index ecb87ba..208396a 100644
--- a/app/src/main/res/values-in-rID/strings.xml
+++ b/app/src/main/res/values-in-rID/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-it-rIT/strings.xml b/app/src/main/res/values-it-rIT/strings.xml
index 0cddee3..9d7f222 100644
--- a/app/src/main/res/values-it-rIT/strings.xml
+++ b/app/src/main/res/values-it-rIT/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-iw-rIL/strings.xml b/app/src/main/res/values-iw-rIL/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-iw-rIL/strings.xml
+++ b/app/src/main/res/values-iw-rIL/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-ja-rJP/strings.xml b/app/src/main/res/values-ja-rJP/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-ja-rJP/strings.xml
+++ b/app/src/main/res/values-ja-rJP/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-ko-rKR/strings.xml b/app/src/main/res/values-ko-rKR/strings.xml
index c73887b..20ef4a3 100644
--- a/app/src/main/res/values-ko-rKR/strings.xml
+++ b/app/src/main/res/values-ko-rKR/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-nl-rNL/strings.xml b/app/src/main/res/values-nl-rNL/strings.xml
index b66a18b..0c2f4a1 100644
--- a/app/src/main/res/values-nl-rNL/strings.xml
+++ b/app/src/main/res/values-nl-rNL/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-no-rNO/strings.xml b/app/src/main/res/values-no-rNO/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-no-rNO/strings.xml
+++ b/app/src/main/res/values-no-rNO/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-pl-rPL/strings.xml b/app/src/main/res/values-pl-rPL/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-pl-rPL/strings.xml
+++ b/app/src/main/res/values-pl-rPL/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index adc9d61..f43bc66 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-pt-rPT/strings.xml b/app/src/main/res/values-pt-rPT/strings.xml
index a6db3de..e2da2bb 100644
--- a/app/src/main/res/values-pt-rPT/strings.xml
+++ b/app/src/main/res/values-pt-rPT/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-ro-rRO/strings.xml b/app/src/main/res/values-ro-rRO/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-ro-rRO/strings.xml
+++ b/app/src/main/res/values-ro-rRO/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-ru-rRU/strings.xml b/app/src/main/res/values-ru-rRU/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-ru-rRU/strings.xml
+++ b/app/src/main/res/values-ru-rRU/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-sr-rSP/strings.xml b/app/src/main/res/values-sr-rSP/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-sr-rSP/strings.xml
+++ b/app/src/main/res/values-sr-rSP/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-sv-rSE/strings.xml b/app/src/main/res/values-sv-rSE/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-sv-rSE/strings.xml
+++ b/app/src/main/res/values-sv-rSE/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-tr-rTR/strings.xml b/app/src/main/res/values-tr-rTR/strings.xml
index f5d4a36..35468ce 100644
--- a/app/src/main/res/values-tr-rTR/strings.xml
+++ b/app/src/main/res/values-tr-rTR/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-uk-rUA/strings.xml b/app/src/main/res/values-uk-rUA/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-uk-rUA/strings.xml
+++ b/app/src/main/res/values-uk-rUA/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-vi-rVN/strings.xml b/app/src/main/res/values-vi-rVN/strings.xml
index b42d9a4..ca441d2 100644
--- a/app/src/main/res/values-vi-rVN/strings.xml
+++ b/app/src/main/res/values-vi-rVN/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index c9ce8cd..1d34306 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -108,7 +108,7 @@
     <string name="self_signed_cert_warning">出于安全考虑, 默认情况下不支持自签名证书。如果激活此项, 您遇到的任何安全问题我将概不负责。</string>
     <string name="pref_selfoss_category">塞尔福斯 Api</string>
     <string name="pref_api_items_number_title">已加载项目编号</string>
-    <string name="pref_hidden_tags">Hidden Tags</string>
+    <string name="pref_hidden_tags">隐藏段落</string>
     <string name="read_debug_title">已读文章显示为未读？</string>
     <string name="read_debug_off">将项目标记为已读时没有记录</string>
     <string name="read_debug_on">将项目标记为已读时将记录 Api 调用</string>
@@ -133,7 +133,7 @@
     <string name="pref_content_reader_font_size">Article reader content font size</string>
     <string name="pref_header_viewer">Article viewer</string>
     <string name="refresh_dialog_message">This will refresh your Selfoss instance.</string>
-    <string name="markall_dialog_message">This will mark all the items as read.</string>
+    <string name="markall_dialog_message">這會使全部項目標示為已讀</string>
     <string name="pref_switch_actions_pager_scroll">Mark as read on swipe</string>
     <string name="pref_switch_actions_pager_scroll_off">Don\'t mark articles as read when swiping.</string>
     <string name="gdpr_dialog_message">The app does not collect any personal data. Every analytics tools were removed. Crash reports sending is now optional, as is the debug logging. Keep in mind that debugging and crash reports are essential for the app development (You can configure everything in Settings &gt; Debug).</string>
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 3309356..b2ffbfb 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -153,4 +153,12 @@
     <string name="pref_switch_items_caching_on">Articles will be saved to the device memory and will be used for offline use.</string>
     <string name="pref_switch_items_caching">Save items for offline use</string>
     <string name="no_network_connectivity">Not connected !</string>
+    <string name="pref_switch_periodic_refresh">Sync articles</string>
+    <string name="pref_switch_periodic_refresh_off">Articles will not be synced in the background</string>
+    <string name="pref_switch_periodic_refresh_on">Articles will periodically be synced</string>
+    <string name="pref_periodic_refresh_minutes_title"><![CDATA[Sync interval ( >= 15 minutes)]]></string>
+    <string name="pref_switch_refresh_when_charging">Only refresh when phone is charging</string>
+    <string name="loading_notification_title">Loading ...</string>
+    <string name="loading_notification_text">Selfoss is syncing your articles</string>
+    <string name="notification_channel_sync">Sync notification</string>
 </resources>