Oops AppLock APK for Android

Used Oops AppLock for Android?

Oops AppLock Analysis

AI Assisted Content · February 7, 2026

Not written by CNET Staff.

Oops! AppLock is a unique utility tool designed for Android users, offering a novel approach to app security by utilizing volume keys instead of traditional passwords or PINs. This application masquerades as a notepad, making it less conspicuous to potential snoopers. Users can easily lock and unlock apps by entering a specific volume key pattern, and it also allows for customization of the app's lock background, enhancing user experience. The app's simplicity and intuitive design make it accessible for a wide range of users, providing a layer of privacy for sensitive applications like banking, galleries, and games.

Despite its innovative features, Oops! AppLock is not without its drawbacks. Frequent crashes can hinder user experience and lead to frustration, particularly for those relying on the app for security. Additionally, there are instances where the app lock may fail to function as intended, which can compromise the security it aims to provide. While it offers a creative solution to app locking, users should be aware of these limitations.

Oops AppLock APK for Android

Used Oops AppLock for Android?

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Full Specifications

GENERAL

Release: December 1, 2018

Latest update: February 7, 2026

Version: 3.4.3

OPERATING SYSTEMS

Platform: Android

Operating System: Android 15.0

POPULARITY

Total Downloads: 235

Downloads Last Week: 3

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Developer’s Description

By Keybotivated

Addictive tips, lifehacker reviews the app as unique.

Addictive tips, lifehacker reviews the app as unique.

"Hilariously brilliant and effective." - Android Authority.

Oops! application locker does not use any on screen password ie. pin based or a pattern based locking system.

We use volume key pattern as the password. You can make any pattern using volume keys, like UP UP DOWN UP.

- Oops Applock is Totally invisible.

- Oops Applock ScreenLock is most safest screenlock.

- Using Oops Applock ScreenLock nobody can unlock your phone.

- Using Oops Applock ScreenLock nobody even notice phone is locked.

- Oops Applock ScreenLock has different styles to choose.

- Oops Applock is Most secure way to lock apps.

- Nobody even notice your app is locked with Oops Applock.

- Oops Applock is Simple.

- Oops Applock is Fun to use.

- Oops Applock can lock any applications.

- You can set different background for lock screen on every locked App with Oops Applock.

- Transparent and Black background makes as if your application is stuck.

- Fool friends with custom backgrounds using Oops Applock.

Tip- While choosing custom background, make sure it matches with your screen size to avoid clarity of the image.

Detailed How to by wonder how to

http://nexus5.wonderhowto.com/how-to/protect-apps-with-secret-volume-button-code-android-0158406/

App discussion forum,

http://forum.xda-developers.com/android/apps-games/app-oops-applocker-applocker-pin-t2960898

Please report bug at xda forum, so i can keep in touch with you.

Help me Translate to other languages

https://keybotivated.oneskyapp.com/collaboration/project?id=55522

Oops AppLock uses the Device Administrator permission.

Please activate AppLock as "device administrator". It's only used for preventing intruders uninstalling Oops AppLock.

Happy Locking.