diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 6034e936..ccd4a4c8 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Empfangene SMS</string>
     <string name="new_message">neue Nachricht</string>
     <string name="mark_as_read">markiere als gelesen</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Möchtest du wirklich alle Nachrichten dieses Chat löschen?</string>
diff --git a/app/src/main/res/values-el/strings.xml b/app/src/main/res/values-el/strings.xml
index c76c6d52..a10ddb94 100644
--- a/app/src/main/res/values-el/strings.xml
+++ b/app/src/main/res/values-el/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Ελήφθη SMS</string>
     <string name="new_message">Νέο μήνυμα</string>
     <string name="mark_as_read">Σήμανση ως αναγνωσμένου</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Είστε βέβαιοι ότι θέλετε να διαγράψετε όλα τα μηνύματα αυτής της συνομιλίας;</string>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index 877a4042..ea852951 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Mensaje recibico</string>
     <string name="new_message">Nuevo mensaje</string>
     <string name="mark_as_read">Marcar como leído</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">¿Estás seguro que quieres eliminar todos los mensajes en esta conversación?</string>
@@ -53,6 +54,7 @@
         Viene con diseño material y tema obscuro por defecto, proveyendo una excelente experiencia de usuario y un uso fácil. La falta de acceso a internet te da más privacidad, seguridad y estabilidad que otras aplicaciones.
 
         No contiene anuncios o permisos innecesarios. Es completamente de código abierto, provee colores personalizables.
+
         <b>Mira la suite completa de herramientas Simples aquí:</b>
         https://www.simplemobiletools.com
 
diff --git a/app/src/main/res/values-lt/strings.xml b/app/src/main/res/values-lt/strings.xml
index 3418233a..492e988f 100644
--- a/app/src/main/res/values-lt/strings.xml
+++ b/app/src/main/res/values-lt/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Gautos žinutės</string>
     <string name="new_message">Nauja žinutė</string>
     <string name="mark_as_read">Mark as Read</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Ar tikrai norite ištrinti visas šio pokalbio žinutes?</string>
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
index fca93962..a007aa08 100644
--- a/app/src/main/res/values-nl/strings.xml
+++ b/app/src/main/res/values-nl/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Ontvangen berichten</string>
     <string name="new_message">Nieuw bericht</string>
     <string name="mark_as_read">Als gelezen markeren</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Alle berichten in dit gesprek verwijderen?</string>
diff --git a/app/src/main/res/values-pt/strings.xml b/app/src/main/res/values-pt/strings.xml
index ebf56905..c1f5c471 100644
--- a/app/src/main/res/values-pt/strings.xml
+++ b/app/src/main/res/values-pt/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">SMS recebida</string>
     <string name="new_message">Nova mensagem</string>
     <string name="mark_as_read">Marcar como lida</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Tem a certeza de que deseja eliminar todas as mensagens desta conversa?</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 55549886..95e6b2e2 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Получено SMS</string>
     <string name="new_message">Новое сообщение</string>
     <string name="mark_as_read">Пометить прочитанным</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Вы уверены, что хотите удалить все сообщения в этой переписке?</string>
diff --git a/app/src/main/res/values-sk/strings.xml b/app/src/main/res/values-sk/strings.xml
index 81fbe50b..cdbef4e7 100644
--- a/app/src/main/res/values-sk/strings.xml
+++ b/app/src/main/res/values-sk/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Prijatá SMS</string>
     <string name="new_message">Nová správa</string>
     <string name="mark_as_read">Označiť ako prečítané</string>
+    <string name="mark_as_unread">Označiť ako neprečítané</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Ste si istý, že chcete odstrániť všetky správy tejto konverzácie?</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a476612e..35038243 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -17,6 +17,7 @@
     <string name="channel_received_sms">Received SMS</string>
     <string name="new_message">New message</string>
     <string name="mark_as_read">Mark as Read</string>
+    <string name="mark_as_unread">Mark as Unread</string>
 
     <!-- Confirmation dialog -->
     <string name="delete_whole_conversation_confirmation">Are you sure you want to delete all messages of this conversation?</string>