diff --git a/app/src/main/java/eu/faircode/email/ApplicationEx.java b/app/src/main/java/eu/faircode/email/ApplicationEx.java
index cef0b941ef..5e5f848df8 100644
--- a/app/src/main/java/eu/faircode/email/ApplicationEx.java
+++ b/app/src/main/java/eu/faircode/email/ApplicationEx.java
@@ -269,6 +269,9 @@ public class ApplicationEx extends Application {
             boolean highlight_unread = prefs.getBoolean("highlight_unread", false);
             if (!highlight_unread)
                 editor.putBoolean("highlight_unread", highlight_unread);
+        } else if (version < 1121) {
+            if (!Helper.isPlayStoreInstall())
+                editor.putBoolean("experiments", true);
         }
 
         if (version < BuildConfig.VERSION_CODE)