# Smart AppLock: Privacy Protect > Lock apps with password! Canonical page: [https://chrome-stats.com/d/com.thinkyeah.smartlockfree](https://chrome-stats.com/d/com.thinkyeah.smartlockfree) ## Overview - **ID:** `com.thinkyeah.smartlockfree` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Smart Protect Mobile - **Category:** TOOLS - **Downloads:** 16,281,735 - **Rating:** 4.49 / 5 (188,446 ratings) - **Version:** 4.3.13 - **Last updated:** 2026-05-28 - **First published:** 2011-04-24 - **Publisher country:** HK - **Size:** 47 MB - **Data as of:** 2026-09-12 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.thinkyeah.smartlockfree) - **Website:** [https://thinkyeah.github.io/app-ads.txt](https://thinkyeah.github.io/app-ads.txt) - **Privacy policy:** [https://thinkyeah.github.io/smartapplock\_privacypolicy.html](https://thinkyeah.github.io/smartapplock_privacypolicy.html) ## Description **Smart AppLock** is a professional and lightweight app locking tool designed to protect your privacy effectively. It allows you to lock apps containing sensitive content such as photos, videos, messages, and call logs, as well as social media apps like Facebook, WhatsApp, and Twitter. You can also secure incoming calls, system settings, and prevent unauthorized access to app markets and games. Key features include unlocking via fingerprint on compatible devices, multiple lock types including pattern and PIN, a home screen widget to toggle locks quickly, customizable lock screen styles, and break-in alerts that capture photos of intruders. The app also offers delay lock functionality and disguises lock screens to prevent password detection. With low memory usage and auto-start after reboot, Smart AppLock provides a seamless and secure experience for protecting your private data. ## Rankings - #9,163 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.ACCESS_WIFI_STATE` - `android.permission.AUTHENTICATE_ACCOUNTS` - `android.permission.CAMERA` - `android.permission.CHANGE_WIFI_STATE` - `android.permission.CLEAR_APP_CACHE` - `android.permission.DELETE_CACHE_FILES` - `android.permission.EXPAND_STATUS_BAR` - `android.permission.FLASHLIGHT` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_SPECIAL_USE` - `android.permission.GET_PACKAGE_SIZE` - `android.permission.GET_TASKS` - `android.permission.INTERNET` - `android.permission.KILL_BACKGROUND_PROCESSES` - `android.permission.MANAGE_EXTERNAL_STORAGE` - `android.permission.MOUNT_UNMOUNT_FILESYSTEMS` - `android.permission.PACKAGE_USAGE_STATS` - `android.permission.POST_NOTIFICATIONS` - `android.permission.QUERY_ALL_PACKAGES` - `android.permission.READ_EXTERNAL_STORAGE` - `android.permission.READ_NETWORK_USAGE_HISTORY` - `android.permission.READ_PHONE_STATE` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.REQUEST_DELETE_PACKAGES` - `android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS` - `android.permission.RESTART_PACKAGES` - `android.permission.SCHEDULE_EXACT_ALARM` - `android.permission.SYSTEM_ALERT_WINDOW` - `android.permission.USE_FINGERPRINT` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `android.permission.WRITE_EXTERNAL_STORAGE` - `android.permission.WRITE_SETTINGS` - `com.android.launcher.permission.INSTALL_SHORTCUT` - `com.android.launcher.permission.READ_SETTINGS` - `com.android.vending.CHECK_LICENSE` - `com.google.android.c2dm.permission.RECEIVE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY` - `com.thinkyeah.smartlockfree.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `oppo.permission.OPPO_COMPONENT_SAFE` ## Review summary Reviewers broadly praise Smart AppLock for its strong app-locking capabilities and ease of use, with many calling it among the best. They also appreciate the configurable options. However, recurring complaints center on intrusive advertising and occasional locking glitches where the lock screen fails to appear or the app opens on its own, which can undermine privacy. ### Pros - Strong app-locking capability and security that reviewers widely consider among the best. - User-friendly and easy to use with positive notes about straightforward operation. - Offers a rich set of configurable options for locking behavior and privacy. ### Cons - Ads are excessive and degrade the user experience. - Occasional reliability issues where the lock screen does not appear or the app opens unexpectedly, undermining security. ## Similar extensions and apps - [AppLock - Lock apps & Password](https://chrome-stats.com/d/com.saslabs.app.security.proapplocker) — 653 users - [AppLock](https://chrome-stats.com/d/com.locker.privacy.applocker) — 3,993,797 users, 4.37 / 5 - [AppLock](https://chrome-stats.com/d/com.SusungLab.AppLock) — 112,687 users, 3.11 / 5 - [AppLock Pro](https://chrome-stats.com/d/com.mkdevelpor.a14c) — 2,300 users - [App Lock - Secure Your Apps](https://chrome-stats.com/d/com.appcreator.applock) — 137 users - [AppLock - Fingerprint](https://chrome-stats.com/d/ir.takro.AppLocker) — 1,742,910 users, 4.48 / 5 - [AppLock - Fingerprint Lock](https://chrome-stats.com/d/com.samarendra.applock) — 14,101 users, 4.78 / 5 - [App Lock: Fingerprint, Pattern](https://chrome-stats.com/d/com.martianmode.applock) — 28,490,545 users, 4.44 / 5 - [AppLock](https://chrome-stats.com/d/com.halilimec.applocker) — 1,696 users - [AppLock Pro - Privacy Guard](https://chrome-stats.com/d/com.snowball.app.lock) — 5,516 users - [AppLock Master - Privacy Guard](https://chrome-stats.com/d/com.aurora.amp.lock) — 81,005 users - [AppLock - Secure Apps Lock](https://chrome-stats.com/d/com.applock.applockerfree) — 11,488 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.thinkyeah.smartlockfree)