Keep Your Apps Private and Secure

Lock any app on your phone with pattern, PIN, password, or fingerprint. Stop others from accessing your private messages, photos, and sensitive information.

4.5

Join 5M+ happy users

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Complete Privacy Protection Made Simple

Lock Your Way

Choose from pattern, PIN, password, or fingerprint locks to secure your apps. Switch between lock types anytime and customize the look to match your style.

Protect Every App

Lock social media, photos, messages, payment apps, and even system settings. Complete control over who can access what on your phone.

Keep Kids Safe

Prevent children from making unauthorized purchases, sending messages, or accessing inappropriate content. Lock Google Play, settings, and any app that could cause trouble.

Fast and Lightweight

Runs smoothly without draining your battery or slowing down your phone. Simple interface that works flawlessly on all modern Android devices.

About App Lock

Lock app with pattern
Lock app with password
Fingerprint support
Keep your privacy by locking apps like WhatsApp, Facebook, Gallery or anything you want.
Lock your apps with a "secure" but "easy to unlock" pattern.
Lock by pattern, password, keypad many types for lock apps. very interesting
You have customize your lock, eg: change lock type, change background

Social apps: AppLock can lock Facebook, WhatsApp, Messenger, Vine, Twitter, Instagram, Snapchat, WeChat and so on. No one can peep at your private chat any more.
System apps: AppLock can lock Contacts, SMS, Gallery, Videos, Email and so on. No one can mess up your settings for system apps.
Android pay apps: AppLock can lock Android Pay, Samsung Pay, Paypal and so on. No one can use your wallet to purchase any item.
Other apps: AppLock can lock any third-party apps, including Gmail, Youtube, games and so on. Completely protect your privacy.

★★★ With AppLock, you will:

Never worry about parents check your Snapchat, Musical.ly!
Never worry about friends borrow your phone to play games with mobile data again!
Never worry about a workmate gets your phone to look the gallery again!
Never worry about someone reads private data in your apps again!
Never worry about kids mess up Settings, send wrong messages, paying games again!

★★★ With App Lock ,you can :

Lock any apps(message, Game, Photos, Videos ...)
Lock apps using Fake Forced Close pop-up
Lock apps using multiple password
Lock incoming calls
Lock system settings to prevent a mess by kids
Lock Google Play to prevent buy games, movies, books
Lock message, Lock call ...
Lock phone setting

★★★ Feature

Pattern Lock: simple and fresh interface, unlock faster!
PIN lock (keypad lock):Much safer for you to lock apps
Customize: change type, change button, change wallpaper
Lock app very effective
Lock app very high security
Easy to use and fast.
Lower capacity, less memory.
Power saving mode to save battery.
App Lock can lock your photos , gallery and messages from prying eyes and nosy friends . To be your privacy guard !
Application lock, best app lock & privacy guard , is the most smart Application lock !
Full protection for your phone.
Support multiple language
Lock your app accurately and smartly
Good at performance and power-saving
Kinds of beautiful lock types

Note: This app uses the Device Administrator permission to prevent hackers from uninstalling applications. You can enable/disable this in your device settings.

See How Easy Privacy Protection Can Be

App Lock main screen showing sensitive apps list including Contacts, Messages, Phone, and Settings with lock icons

App Lock settings menu with options for activate locker, administrator, fingerprint, security email, and theme

App Lock pattern unlock screen for Messages app with 9-dot grid for drawing security pattern

App Lock pattern entry screen for Phone app showing yellow connected dots forming unlock pattern

App Lock Settings pattern screen showing incorrect password error message with red pattern drawn

App Lock PIN code entry screen for Chrome browser with numeric keypad 0-9 and 4-digit indicator dots

App Lock PIN unlock screen for Contacts app with numeric keypad and 4-digit password entry indicator

App Lock dark theme showing sensitive applications including Contacts, Gmail, Messages, Phone, Photos, Settings locked

App Lock profiles screen in dark mode displaying General and Sensitive groups with multiple locked app icons

App Lock dark mode settings menu showing activate locker, administrator, fingerprint, dark mode, and vibrate toggles

App Lock Messages pattern unlock in dark mode with 9-dot grid on dark background

App Lock Phone pattern screen dark theme showing yellow connected dots forming security pattern

App Lock Settings incorrect pattern error in dark mode with red pattern and error message displayed

App Lock Chrome PIN entry dark mode with numeric keypad and 4-dot password indicator

App Lock Contacts PIN unlock dark theme showing numeric keypad with 4-digit entry circles

App Lock applications tab light theme listing sensitive apps and general apps with lock status indicators

Join Millions Who Trust App Lock

Really struggled to find an app that works smoothly with a Google Pixel 6 Pro. Only app of about 15 I downloaded that worked smoothly and easily. L... Really struggled to find an app that works smoothly with a Google Pixel 6 Pro. Only app of about 15 I downloaded that worked smoothly and easily. Like how it locks app after using each time and looks for fingerprint again each time even if screen not locked. Great app without excessive ads or up selling of other apps.

What can I say, this meets meet the high expectations they set forth in their description. It is truely a lock with locking within yet more locks. ... What can I say, this meets meet the high expectations they set forth in their description. It is truely a lock with locking within yet more locks. If your job is a sensitive nature, or its privacy is needed to keep you and your clients safe, then this is the app you need!

Such a real encryption. Loved this app. If there is something more than 5 stars i would really do that for this app. It has the commercial grade en... Such a real encryption. Loved this app. If there is something more than 5 stars i would really do that for this app. It has the commercial grade encryption and a secure secrecy. Thank you Smart Mobile Tools for providing such a satisfying security.

Easy to use. Ads are not big and annoying. We use digital Bible app at our worship meetings, by blocking other apps my son stays focused because he... Easy to use. Ads are not big and annoying. We use digital Bible app at our worship meetings, by blocking other apps my son stays focused because he cannot venture into other apps. It also helps me to stay on task and not venture off.

Best Free App Locker on Play Store. I've already tried more than 12 App Lockers Before This. But Every App Either Had Glitches or A Ton of Ads. Thi... Best Free App Locker on Play Store. I've already tried more than 12 App Lockers Before This. But Every App Either Had Glitches or A Ton of Ads. This is Exceptional and Best 👌 Try Once, You’ll Love it! So Smooth and Responsive 👌

Fantastic app in every way. It's so easy to use and works flawlessly. The developer has paid great attention to detail and seems to have thought of... Fantastic app in every way. It's so easy to use and works flawlessly. The developer has paid great attention to detail and seems to have thought of everything. I had no hesitation in purchasing the ad-free version.

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Available on Google Play Store • Free to download

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