App lock v4.3
APK · 8.4 MB · version code 43 · Android 4.1+ · uploaded Feb 21, 2026
- Signature matches the Google Play version Details
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File information
- Version
- v4.3 (43)
- Uploaded
- Feb 21, 2026
- Size
- 8.4 MB
- Requires
- Android 4.1+ (API 16)
- CPU support
- x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS, MIPS 64-bit
- Screen
- Small screens and larger
- MD5
- 2ede17d46fa5afd844fdff9f02960167
- Signing certificate (SHA-1)
- 44:FC:C5:77:8A:97:51:B5:13:45:D4:3F:1A:F6:93:F7:04:49:BE:51
- Signed by
- CN=adeel jamil, O=adydev
- File name
- com-adycoder-applock-43-73653462-2ede17d46fa5afd844fdff9f02960167.apk
- Package
- com.adycoder.applock
- Downloads (all versions)
- 1M+
- Age rating
- PEGI 3 · Everyone
What's new in v4.3
Bug fixes
1.Fixed crash while opening photos of intruders
2. Fixed crash while selecting multiple videos to unhide them from video vault.
3. Some apps icons don't appear in list view sometimes has been fixed.
Permissions (27)
This version requests 27 permissions, 7 of them sensitive.
- Bind accessibility service Sensitive android.permission.BIND_ACCESSIBILITY_SERVICE
- Bind notification listener service Sensitive android.permission.BIND_NOTIFICATION_LISTENER_SERVICE
- Camera Sensitive android.permission.CAMERA
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Package usage stats Sensitive android.permission.PACKAGE_USAGE_STATS
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Write settings Sensitive android.permission.WRITE_SETTINGS
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- Alarm set alarm (custom) com.android.alarm.permission.SET_ALARM
- Change wifi state android.permission.CHANGE_WIFI_STATE
- Clockpackage read alarm (custom) com.sec.android.app.clockpackage.permission.READ_ALARM
- Clockpackage write alarm (custom) com.sec.android.app.clockpackage.permission.WRITE_ALARM
- Context write use app feature survey (custom) com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY
- Control vibration android.permission.VIBRATE
- Flashlight android.permission.FLASHLIGHT
- Full network access android.permission.INTERNET
- Get tasks android.permission.GET_TASKS
- Launcher read settings (custom) com.android.launcher.permission.READ_SETTINGS
- Mount unmount filesystems android.permission.MOUNT_UNMOUNT_FILESYSTEMS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Remove home-screen shortcuts com.android.launcher.permission.UNINSTALL_SHORTCUT
- Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Feb 21, 2026.
- Certificate issued to “adydev” This is the certificate of the Google Play version.
Store checks
- Developer signature verified Feb 21, 2026
- Validated against Google Play Feb 21, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself.
How to install App lock on Android 4.1+
You'll need about 16.8 MB of free space.
- Download the APK — tap Download APK above (8.4 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-adycoder-applock-43-73653462-2ede17d46fa5afd844fdff9f02960167.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 2ede17d46fa5afd844fdff9f02960167. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open App lock — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.1+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS, MIPS 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.