Applock Pro - App Lock & Guard

Contains adsIn-app purchases
2.02M reviews
Content rating
Everyone
100M+
Downloads
Content rating
Everyone
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About this app

AppLock Pro is one of the most popular app locker that you can lock your apps or photos easily.

Choose a lock model, lock apps you want. AppLock is the best way to prevent intruders who want to open your locked apps without your permission.

Your privacy is important for us. Keep your apps safe with this locking app!

FEATURES
★ Lock apps
Lock your private apps (WhatsApp, Instagram, Settings, Messages, Messenger, etc.) with a password, fingerprint(if your device supports), pattern lock, or knock code.

★ Spy Camera
When someone tries to open your locked app, AppLock takes a selfie photo from the front camera and saves it.

★ Fake Error Message
You can set additional security precautions. If you activate this setting; when locked apps are tried to be opened a fake error message is shown.

★ Hide Notifications
AppLock blocks notification of locked apps if you activate this feature.

★ AppLock Lock Timer
You can set the timer to make AppLock inactive in a certain time period.

★ Re-Lock Time
You can set re-lock time to make AppLock active.

★ Spy Alarm?
If a password is entered incorrectly 5 times, the spy alarm will be ringing loudly.

★ Customize
You can customize the theme and background style. You can choose an image from the gallery for the background.

★ Other Advanced Features
Vibration, Line visibility, System status, New App Alert, Lock recent Apps Menu. AppLock is optimized for battery and ram usage. Also, you can use AppLock without ads at a low price.

LOCK TYPES
★ Fingerprint Lock (If Your Device Support)
Fingerprint lock for your locked apps. It works if your device supports fingerprint!

★ KnockCode Lock
It is a different and powerful lock system.

★ Pattern Lock
Create a pattern by combining points.

★ Pin Lock
Create a 4-8 digit password.

▶ FAQ
★ How can I prevent AppLock to be uninstalled?
Firstly you should lock all critical apps. Secondly, you should activate "Hide Icon" in the preferences tab.

★ Why permissions are required?
AppLock contains advanced features. All necessary permissions are required to implement advanced features. For example, "Photos / Media / Files Permissions" is required to select a background image.

★ What should I do if I forget my password?
You can set a new password by using your secret answer.

★ How can I hide pictures and videos?
If you lock the Gallery app then, intruders can not see your photos and videos.

★ How works the spy camera feature?
When the intruder enters the password incorrectly 5 times, the secret answer screen is shown. After answering the secret answer, a photo from the front camera is taken & saved to the gallery.

Accessibility Service disclosure

AppLock's Website Blocker feature uses Android's Accessibility Service to block the websites you choose. When you turn on Website Blocker and grant the permission, the service reads only the web address (URL) shown in your browser's address bar in supported browsers (Google Chrome and Samsung Internet) to detect when you open a site or category you've chosen to block, and then shows a block screen instead of the page.

• It is used only for the Website Blocker feature, and only after you enable it and grant the permission.
• It reads only the address bar (the site's web address). It does not read page content, capture what you type, read your passwords, or record your screen.
• Android does not offer another way for an app to detect the page a browser is showing, so this permission is required for the feature to work.
• You can turn Website Blocker off at any time in the app, or revoke the permission at any time in Android Settings > Accessibility, which stops the service completely.
Secure your apps with lock screens, use custom themes and different features.
Updated on
29 Oct 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity and 2 others
  • This app may collect these data types
    Location, App activity and 2 others
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

1.94M reviews
K A
8 September 2026
So many ADS. Every time I want to open my texts I have to watch the ad first. It really isn't even about just simply closing out the ad. The amount of time it takes for my biometric pw to register, then see the ad popup, finally try to clear the ad, it is so long I coukd take a nap. I would never be able to msg some fast if it were an emergency. I nearly lose my thought in the time waiting to get to the text message! It works to definitely deter you from opening the locked app!
22 people found this review helpful
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App Lock LLC
9 September 2026
We hear you — ads delaying access (especially in urgent moments) is not the experience we want. Your feedback has been shared with our team, and we're actively reviewing ad placement and frequency.
Vash Miller
3 July 2026
Good at first, but lately they have started giving me ads sometimes when opening locked apps. These are easy to skip because you can just close the ad by closing applock but they're still giving me ads so I have to leave one star. I will keep using it because I'm used to it, and I will keep skipping out of the ads, and I will keep one star until they remove ads. Edit: The devs responded to the original review using AI btw... I've also noticed ads getting more frequent over time, might uninstall
35 people found this review helpful
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App Lock LLC
6 July 2026
We hear you — ads delaying access (especially in urgent moments) is not the experience we want. Your feedback has been shared with our team, and we're actively reviewing ad placement and frequency.
My Name
15 July 2026
Reviews are Probably Bought This app lock other apps on the phone but has many issues. First of all, it glitches. For instance, I can see a preview of my messages right before the lock screen appear for me to put the password to actually access the app. Secondly, the app is FULL OF AD. ANNOYINGLY FULL OF ADS. You won't be able to open an app right away without first seeing an annoying and random ad for 10-20 seconds. Good luck if you're in a hurry. I am deleting the app right now.
34 people found this review helpful
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App Lock LLC
16 July 2026
Thanks for letting us know — crashes or freezing aren't the experience we want. Please open a support ticket at https://applock.zendesk.com/hc/en-us/requests/new with your device model and Android version so our engineers can investigate.