App Lock - Fingerprint Pattern

Biometrics Solution

Contains ads

About this app

A top-rated app lock trusted by millions. Protect any app with fingerprint, face unlock, pattern, or PIN code. Beautiful lock screens that match each app's colors. Fast, lightweight, and 100% offline — your biometric data never leaves your device.

🔒 Four ways to lock your apps

✔ Fingerprint lock — unlock instantly with your fingerprint sensor
✔ Face unlock — unlock securely using your front camera
✔ Pattern lock — draw your custom unlock pattern
✔ PIN lock — enter a secure numeric passcode

Switch between lock types at any time. Use fingerprint or face as a fast secondary unlock alongside your pattern or PIN. Supports biometric authentication on all modern Android devices with a fingerprint scanner or face sensor.

🛡 Protect any app

Lock social media, messaging, email, banking, gallery, camera, browser, or any app on your phone — WhatsApp, Instagram, Snapchat, Facebook, TikTok, Telegram, Chrome, YouTube, Photos, and more. One tap to lock, one tap to unlock. Use it as an app protector, a privacy lock for sensitive apps, or a parental control tool to keep children out of apps they shouldn't access. Perfect for keeping your private photos, secret chats, and personal data hidden from prying eyes.

🔐 Smart security

• Stealth mode — hide pattern dots so no one can watch you draw. Invisible pattern lock keeps your password safe from shoulder surfers
• Lock App Lock itself — prevent others from changing your security settings or disabling protection
• Auto-start on boot — protection resumes automatically after every restart. No need to reopen the app
• Real-time guard — locked apps are challenged with a password screen instantly when opened

🎨 Beautiful and personal

• Dynamic colors — each lock screen adapts to the app's icon colors
• Dark, light, or system theme — follows your preference automatically
• Sound and vibration — tactile and audible feedback on every interaction
• Pin favorites — swipe to pin apps to the top for quick management

⚡ Lightweight

Runs quietly in the background. Minimal battery and memory usage. No slowdowns, no interference with other apps. A secure, reliable app locker you can trust every day.

🔒 100% offline privacy

All credentials and passwords stay on your device. Face recognition uses an embedded AI model — no photos, no biometric data, and no information of any kind is sent to external servers. No account required, no sign-up, no cloud storage. Your privacy is not a feature, it is the default.

❓ FAQs

Q: How do I set up face unlock?
A: Open App Lock → Settings → Lock type → Face recognition. Requires a front camera.

Q: How do I change or switch my lock type?
A: Open App Lock → Settings → Choose PIN code or pattern. Switching does not remove your locked apps.

Q: What is stealth mode?
A: It hides the dots while you draw your pattern, so no one nearby can see it. Enable in Settings.

Q: Does it work after a restart?
A: Yes. App Lock starts automatically on boot.

Q: How does fingerprint unlock work?
A: A fingerprint icon appears on the lock screen automatically if your device has a sensor. Just touch it.

Q: How do I pin an app?
A: Swipe right on any app to pin it to the top of the list.

Q: Is my face data uploaded anywhere?
A: No. All face processing runs locally. Nothing leaves your device.

Whether you need a fingerprint lock app, a face lock app, a pattern lock screen, or a simple PIN locker — App Lock has you covered.

Download App Lock now and protect your privacy in seconds.

Ratings and reviews

Wish it was longer than what it was but I don't have a credit card with available funds to pay them so I got locked out until I bet the money to them.. they should explain that to you before you agree with their terms so you know there is a chance for you to get locked out--OMG, and I....,...... can't believe this...over a$1.99 less than$2.00. Good luck Everyone, I'll be back to pay them and then I'll turn back around and leave ya.....

Pointless as there are 2 ways to bypass it. 1. Someone can uninstall it by long tap on the app shortcut so all locked apps are unlocked. 2. I have set the back button of my device to force close (kill) current apps. If I open this app and force close it there is no lock on the locked apps. LOL

This is excellent app....i ilke it....but there is one problem...all apps of my phone are shown in this app except my gallery....i want to lock my gallery... But it hasn't an option of gallery....i want its solution....that's why i rate it 4 stars....otherwise it is an outstanding app... Thanku....✌

What’s new

What's new in App Lock v5.71:

• Fixed a startup crash for users upgrading from older versions
• Switched locked-app storage to a more reliable format
• Other stability improvements

Thank you for using App Lock! If you enjoy the app, please leave us a rating.