AT&T is permanently shutting down its Photo Storage app on February 1st, 2026, with backup support ending on October 20th of ...

After you hit "Clear data," that number next to Data should go down to 0 bytes, and other app-related file sizes shown on the Storage usage page should diminish as well.

Clearing an app's storage data essentially resets it to factory conditions, removing all personalized settings, saved logins, and app-specific files.