Smart AppLock
Download Smart AppLock v4.3.13 (46.5 MB) for Android. Secure your apps with a simple lock, no root needed. Safe install guide and tips.
Download Smart AppLockClick the button above to start your download — nothing downloads automatically.
Frequently Asked Questions
Smart AppLock works as intended, but because it is a third‑party APK you should download it from a trusted source and scan the file with an antivirus before installing.
No, Smart AppLock does not need root; it uses standard Android permissions and Accessibility services to lock apps.
You can lock most installed apps, but system apps or those that block overlay permissions may not be lockable.
Open the app, go to Settings, choose the lock type (PIN, password, or pattern), and follow the prompts to create your credential.
Smart AppLock works on Android 5.0 (Lollipop) and newer, though exact compatibility may vary by device.
The error can occur if installation from unknown sources is disabled, if the APK is corrupted, or if your device’s Android version is not supported.
Yes, Smart AppLock adds an extra layer on top of the device’s native app lock, allowing you to protect additional apps.
All locking functions operate locally, so the app works without an internet connection after it is installed.
