App Lock - Fingerprint Pattern

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.