App Lock & Privacy Secure Your Apps

Lock any app with your PIN, password or fingerprint. Keep private apps safe.

App Lock & Privacy keeps your private apps private. Lock chats, photos, email, banking, or any other app with your phone's screen lock, a separate App PIN, an App password, or your fingerprint. When someone opens a locked app, they see a lock screen instead of your content.

100% free, forever. No ads, no in-app purchases, no premium version: every feature is free for everyone.

★ LOCK ANY APP

• See all your installed apps in one list, with locked apps shown at the top

• Tap the lock icon to lock or unlock an app

• Find apps fast with search and the A–Z side scroller

• Every lock or unlock change is confirmed with your PIN, password or fingerprint

★ UNLOCK YOUR WAY

• Phone screen lock: use the PIN, pattern, password or fingerprint you already use on your phone

• App PIN: a separate 4–8 digit PIN just for locked apps

• App password: a separate password just for locked apps

• Fingerprint: unlock with a touch when using an App PIN or password

• Forgot your App PIN? Verify with your phone's screen lock and set a new one

★ SMART AUTO-LOCK

• Choose when an app locks again after you leave it: immediately, after 2, 5 or 10 minutes

• Locking your phone or turning off the screen locks every app straight away

• Too many wrong attempts pause unlocking for 30 seconds

★ PROTECT APP LOCK ITSELF

• Ask for unlock every time App Lock is opened, so no one else can change your locks

• Optional uninstall protection stops others from removing App Lock to get around your locks

★ ALWAYS FREE, NO ADS

• Completely free, with no hidden costs and no subscriptions

• No ads, ever: nothing pops up or gets in your way

• All features are unlocked for everyone

★ LIGHT AND PRIVATE

• Runs quietly in the background and uses very little memory and battery

• Starts automatically after your phone restarts

• Dark theme, also used on the lock screen

• No account and no tracking

• Your PIN and password are stored only on your phone, as a secure one-way hash. Nothing leaves your device.

★ PERMISSIONS WE ASK FOR, AND WHY

• Usage access: to know which app you open, so locked apps can be protected

• Display over other apps: to show the lock screen on top of a locked app

• Run in background (battery optimisation): so Android doesn't stop the lock from working

• Notifications: shows a small, silent status notification while protection is on

• Device admin (optional): only used for uninstall protection. App Lock uses no other device admin powers, and you can turn it off at any time in Settings.

App Lock & Privacy does not read your messages, photos, or anything inside your apps. It only checks which app is on screen.

Have a question or idea? Follow us on Instagram and YouTube, linked from the app's menu.