diff --git a/app/src/main/res/values-cy/strings.xml b/app/src/main/res/values-cy/strings.xml
index 8214e3df9..09cb8fcb4 100644
--- a/app/src/main/res/values-cy/strings.xml
+++ b/app/src/main/res/values-cy/strings.xml
@@ -46,12 +46,12 @@
     <string name="delete_all">Delete all</string>
     <string name="translate_toot">Cyfieithu\'r tŵt hwn.</string>
     <string name="schedule">Amserlen</string>
-    <string name="text_size">Text and icon sizes</string>
+    <string name="text_size">Meintiau testun ac eiconau</string>
     <string name="text_size_change">Change the current text size:</string>
     <string name="icon_size_change">Change the current icon size:</string>
     <string name="next">Nesaf</string>
     <string name="previous">Previous</string>
-    <string name="open_with">Open with</string>
+    <string name="open_with">Agor gyda</string>
     <string name="validate">Validate</string>
     <string name="media">Cyfryngau</string>
     <string name="share_with">Share with</string>