Lock Screen

A convenient app that help you to lock your phone's screen easily.

Joni Liu · com.olalab.lockscreen

4.0 out of 5 (2 ratings) 500K+ downloads v1.8 65.3 KB Android 2.2+ PEGI 3 · Everyone

Download APK 65.3 KB All versions

Same certificate as the other version checked Details

At a glance

Latest version: v1.8 (9)
Updated: Sep 3, 2026 (1 month ago)
APK size: 65.3 KB
Requires: Android 2.2+ (API 8)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Dec 29, 2019 (at least)
Website: kitsage.com/mobile-apps-privacy.html
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Lock Screen is an app by Joni Liu in the Tools category, listed since at least December 2019. It has no native code, so it runs on any Android processor.

What's new in v1.8

Google Play policy compliant update

Description

From the listing uploaded by “catappult”.

A Lock Screen app is a very light (apk file size less than 72kb) and convenient app that help you to lock your phone's screen easily without having you to press the hard Power button. You will find it useful when: ✓ You just want a quick and convenient way to lock screen immediately. ✓ You don't want to always press hard power button to turn off / lock screen. ✓ No Ads! To uninstall Lock Screen app: 1. Go to phone's settings > Security > Device administrators > Uncheck Lock Screen. 2. Go to phone's Settings > Apps > Lock Screen > Tap uninstall. Notes: ✓ This app uses the Device Administrator permission to lock your phone's screen. ✓ Only available on Android P and newer: This app uses the new Accessibility Service APIs to lock your phone's screen without disabling the fingerprint on the lock screen. As result of using new APIs; new user permissions have to be included (i.e. WRITE_EXTERNAL_STORAGE ). Like it? Find it useful? Share it and give a positive rating. Questions / Inquiries? Report bug? Suggest new improvement / feature? Click Email Developer link below.

Version history

2 versions are listed, going back to v1.7.

v1.8 LATEST Sep 3, 2026 65.3 KB TRUSTED v1.7 Sep 3, 2026 70.3 KB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “olalab” The developer's name — though anyone can put any name in a certificate.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Feb 19, 2026
Signed byCN=Joni Liu, OU=olalab, O=olalab, L=singapore, ST=singapore, C=SG
Signing certificate (SHA-1)01:3F:18:08:D0:38:2A:97:A7:9E:66:00:11:48:9B:07:04:EB:53:7F
File MD51e14501bd3592d612f2c2da5c82d55a4
Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Required hardware & features

Basic touch input android.hardware.faketouch

Lock Screen APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Lock Screen APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is 1e14501bd3592d612f2c2da5c82d55a4.