diff --git a/app/src/main/play/listings/si/full-description.txt b/app/src/main/play/listings/si/full-description.txt
index 175e526e..db983a98 100644
--- a/app/src/main/play/listings/si/full-description.txt
+++ b/app/src/main/play/listings/si/full-description.txt
@@ -1,11 +1,11 @@
 Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet.
 
-Website: https://syncthing.net/
+වියමන අඩවිය: https://syncthing.net/
 
-Source code: https://github.com/syncthing/syncthing-android
+ප්‍රභව කේතය: https://github.com/syncthing/syncthing-android
 
-Forum: https://forum.syncthing.net/
+සංසදය: https://forum.syncthing.net/
 
 Issues: https://github.com/syncthing/syncthing-android/issues
 
-Privacy-policy: https://syncthing.net/android-privacy-policy
\ No newline at end of file
+රහස්‍යතා ප්‍රතිපත්තිය: https://syncthing.net/android-privacy-policy
\ No newline at end of file
diff --git a/app/src/main/play/listings/si/short-description.txt b/app/src/main/play/listings/si/short-description.txt
index 2020025b..0714ecd8 100644
--- a/app/src/main/play/listings/si/short-description.txt
+++ b/app/src/main/play/listings/si/short-description.txt
@@ -1 +1 @@
-Open, trustworthy and decentralized file synchronization
\ No newline at end of file
+විවෘත, විශ්වසනීය සහ විමධ්‍යගත ගොනු සමමුහූර්තකරණය
\ No newline at end of file
diff --git a/app/src/main/res/values-si/strings.xml b/app/src/main/res/values-si/strings.xml
index 2a15e0c3..f6467cd6 100644
--- a/app/src/main/res/values-si/strings.xml
+++ b/app/src/main/res/values-si/strings.xml
@@ -3,57 +3,93 @@
   <string name="app_name">සයින්තින්</string>
   <!--FirstStartActivity-->
   <!--Title for dialog displayed on first start-->
+  <string name="welcome_title">ඇන්ඩ්‍රොයිඩ් සඳහා සයින්තින් වෙත සාදරයෙන් පිළිගනිමු</string>
   <!--Welcome wizard-->
   <!--Slide 1-->
   <!--Slide 2-->
-  <string name="storage_permission_title">ගබඩා අවසරය</string>
+  <string name="storage_permission_title">ආචයන අවසරය</string>
   <!--Slide 3-->
+  <string name="location_permission_title">ස්ථානය අවසරය (පසුබිම)</string>
   <!--Generic texts used everywhere-->
   <string name="back">ආපසු</string>
+  <string name="cont">ඉදිරියට</string>
+  <string name="finish">නිමයි</string>
   <string name="generic_example">උදාහරණය</string>
   <string name="generic_error">දෝෂය</string>
+  <string name="accept">පිළිගන්න</string>
+  <string name="ignore">නොසලකන්න</string>
   <!--MainActivity-->
   <!--Title of the exit app when running as a service confirmation dialog-->
   <!--Title of the "add folder" menu action-->
   <string name="add_folder">බහාලුමක් එකතු කරන්න</string>
   <!--Title of the "share device id" menu action-->
+  <string name="share_device_id">උපාංගයේ හැඳු. බෙදාගන්න</string>
   <!--Shown in the chooser dialog when sharing a Device ID-->
+  <string name="send_device_id_to">වෙත උපාංගයේ හැඳු. යවන්න</string>
+  <string name="usage_reporting_dialog_title">භාවිතය නිර්නාමික වාර්තා කිරීමට ඉඩ දෙනවාද?</string>
+  <string name="yes">ඔව්</string>
   <string name="no">නැහැ</string>
   <string name="open_website">වියමන අඩවිය විවෘත කරන්න</string>
+  <string name="toast_write_storage_permission_required">මෙම යෙදුමට ආචයනයට ලිවීමේ අවසරය ඇවැසිය</string>
+  <string name="dialog_disable_battery_optimization_later">පසුව</string>
+  <string name="dialog_disable_battery_optimization_dont_show_again">නැවත පෙන්වන්න එපා</string>
   <!--StateDialogActivity-->
   <!--Text for FoldersFragment and DevicesFragment loading view-->
+  <string name="api_loading">පූරණය වෙමින්…</string>
   <!--Shown instead of web_gui_loading if the key does not exist and has to be created-->
   <!--FoldersFragment-->
+  <string name="folders_fragment_title">බහාලුම්</string>
   <!--Shown if no folders exist-->
+  <string name="folder_list_empty">බහාලුම් හමු නොවිණි</string>
   <!--Format string for folder file count-->
+  <plurals name="files">
+    <item quantity="one">ගොනු %1$d / %2$d</item>
+    <item quantity="other">ගොනු %1$d / %2$d</item>
+  </plurals>
   <!--DevicesFragment-->
+  <string name="devices_fragment_title">උපාංග</string>
   <!--Shown if no devices exist-->
+  <string name="devices_list_empty">උපාංග හමු නොවිණි</string>
   <!--Indicates that a folder is fully synced to the local device-->
+  <string name="device_up_to_date">යාවත්කාලීනයි</string>
   <!--Indicates that the device is currently syncing. Parameter is sync percentage-->
+  <string name="device_syncing">සමමුහූර්ත වෙමින් (%1$d%%)</string>
   <!--Indicates that there is no connection to the device-->
+  <string name="device_disconnected">විසන්ධියි</string>
   <!--Indicates that the device is paused and does not sync-->
   <!--Indicates that the device connection is unknown-->
+  <string name="device_state_unknown">නොදනී</string>
   <!--Title for current download rate-->
   <!--Title for current upload rate-->
   <!--StatusFragment-->
+  <string name="status_fragment_title">තත්‍වය</string>
+  <string name="syncthing_starting">සයින්තින් ඇරඹෙමින්.</string>
+  <string name="syncthing_running">සයින්තින් ධාවනය වෙමින්.</string>
+  <string name="syncthing_not_running">සයින්තින් ධාවනය නොවේ.</string>
   <!--DrawerFragment-->
   <!--Same as download_title with a colon and space appended-->
   <!--Same as upload_title with a colon and space appended-->
   <!--Title for current CPU usage-->
   <!--Title for current RAM usage-->
   <!--Title for announce server status-->
+  <string name="restart">යළි අරඹන්න</string>
   <!--FolderActivity-->
   <!--Setting title-->
+  <string name="folder_id">බහාලුමේ හැඳු.</string>
   <!--Setting title-->
   <!--Setting title-->
   <!--Setting title and description-->
   <!--Setting title-->
   <!--Setting title-->
+  <string name="devices">උපාංග</string>
   <!--Setting title-->
   <!--Setting title-->
   <!--Title for FolderSettingsFragment in create mode-->
+  <string name="create_folder">බහාලුම සාදන්න</string>
   <!--Title for FolderSettingsFragment in edit mode-->
+  <string name="edit_folder">බහාලුම සංස්කරණය</string>
   <!--Menu item to confirm folder creation-->
+  <string name="create">සාදන්න</string>
   <!--Dialog shown when attempting to remove a folder-->
   <!--Toast shown when trying to create a folder with an empty ID-->
   <!--Toast shown when trying to create a folder with an empty path-->
@@ -62,16 +98,26 @@
   <!--Toast shown if the user selected an invalid location for a new syncthing folder-->
   <!--DeviceActivity-->
   <!--Setting title-->
+  <string name="device_id">උපාංගයේ හැඳු.</string>
   <!--Setting title-->
+  <string name="name">නම</string>
   <!--Setting title-->
+  <string name="addresses">ලිපින</string>
   <!--Setting title-->
   <!--Setting title-->
   <!--Strings representing compression options-->
+  <string-array name="compress_entries">
+    <item>කවදාවත්</item>
+    <item>පාරදත්ත</item>
+    <item>සැමවිටම</item>
+  </string-array>
   <!--Setting title-->
   <!--Setting title-->
   <!--ActionBar item-->
   <!--Menu item to confirm adding a device-->
+  <string name="add">එකතු</string>
   <!--Title for DeviceSettingsFragment in edit mode-->
+  <string name="edit_device">උපාංගය සංස්කරණය</string>
   <!--Dialog shown when attempting to remove a device-->
   <!--Toast shown when trying to create a device with an empty ID-->
   <!--Content description for device ID qr code icon-->
@@ -151,7 +197,9 @@
   <!--Strings representing units for file sizes, from smallest to largest-->
   <!--Strings representing units for transfer rates, from smallest to largest-->
   <!--Possible folder states-->
+  <string name="state_syncing">සමමුහූර්ත වෙමින් (%1$d%%)</string>
   <string name="state_error">දෝෂය</string>
+  <string name="state_unknown">නොදනී</string>
   <!--Format string for folder size, eg "500 MiB / 1 GiB"-->
   <!--Titles used in the folder type dialog and folder type button in the folder activity-->
   <!--Displays the current folder type in the folder activity-->