App Lock apps

Secure Folder & App Locker

A free app lock and encrypted photo vault for Android. Lock WhatsApp, your gallery, banking and any other app behind a fingerprint, PIN or pattern. Hidden photos and videos are encrypted with AES-256 before they are written to storage and leave your normal gallery, so no other app can read them. The app can also disguise itself as a working calculator: type your PIN, press equals, and the vault opens. Optional extras include an encrypted Google Drive backup, a private browser that leaves no history, intruder capture from the front camera, and blank notifications for locked apps. No account, no sign-up, works offline. Android 8.0 and above.