Turn Off Screen - Screen Lock

Contains adsIn-app purchases
4.5
38.8K reviews
5M+
Downloads
Content rating
Everyone
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About this app

Turn Off Screen (Screen Lock) is a small, simple, fast and beautiful app that helps you turn your phone screen off and lock it without using the power button. Most importantly, it's well-optimized for almost every single manufacturer.

If your power button is broken, this is a must-have app. Even if your power button works fine, this screen lock app is still incredibly useful — it lets you turn off the screen instantly with just one tap, protecting your power button and extending your phone's lifespan.


★ FEATURES ★

✓ Just one tap to lock screen, one tap to turn off screen
FLOATING BUTTON — a screen-off button that stays on top of all apps. Drag it anywhere, tap to lock screen instantly. More convenient than ever!
✓ Works with fingerprint sensor and Smart Lock (bluetooth, trusted devices, trusted face, trusted location, on-body detection...)
✓ Turn screen off from notification panel — notification won't show on your lockscreen
Various icon colors to choose from (red, orange, yellow, green, blue, indigo, purple, white, black, pink...)
✓ Support dark theme for Android 9 onwards — automatically follows system theme
✓ Works flawlessly on foldable phones
✓ Well-optimized for every single manufacturer: Samsung, Xiaomi, OPPO, Vivo, Realme, Huawei, Google Pixel...
✓ Support Widget on home screen and lock screen
✓ Adaptive icon on Android 8 onwards
✓ Turn screen off and lock IMMEDIATELY — can still unlock with fingerprint on Android 9+


★ MULTIPLE WAYS TO LOCK ★

Floating Button — always visible on screen, tap to lock, drag anywhere
Home Screen Icon — tap the icon to turn off screen
Widget — place a lock widget anywhere on your screen
Notification Panel — swipe down and tap to turn off screen quickly


★ WHY CHOOSE THIS APP? ★

One-tap screen lock — faster than pressing the power button
Floating button — always ready on any screen, no need to go home first
Protect your power button — reduce hardware wear, extend phone life
Ultra-light — no battery drain, no memory usage
Free — full features, no limitations


★ PERMISSION ★

Android 9 onwards: This app requires Accessibility permission to turn screen off and lock screen as pressing power button.
Note: If the app is killed (removed from memory/force stop), that permission will be revoked and you will need to grant it again. Please don't kill this application to avoid being asked permission repeatedly.

Android 8 and below: This app uses the Device Administrator permission to turn the screen off and lock screen.
Note: Once you granted that permission, in order to uninstall the app please open the app's settings, find and tap the Deactivate button to revoke this permission first.


★ HELP, FEEDBACK and BUG REPORT ★

Please open the app, find FAQ section then tap on Feedback and bug report to send an email to the developer. Thank you.
Updated on
Apr 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
This app may collect these data types
App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.5
37.3K reviews
Victor Phalani
March 31, 2026
Great App. It has met my needs the only terrible part is ads in settings but can't stop me from rating 5-Stars because to it's function, it works with no distractions. Please in the next update include "double tap" feature/option to wake it up but be careful when making some updates, it shouldn't start malfunction.
1 person found this review helpful
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A Google user
December 16, 2018
The best locking screen!! Works perfectly with my Mi A2 just the way I wanted, which I couldn't find in other apps. I don't understand the complain of others. This app is small, works with the fingerprint scanner, and it can also create a locking button under the notification!! Most importantly it's not just making the screen to black, but it really does lock the screen!! Five stars!!
48 people found this review helpful
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A Google user
January 17, 2019
Best locking app that works with finger scanner but found an issue! This app had no flaws, until I decided to use the "Youtube Red" app with the video minimized playing in the background and decided to lock my screen. It turned the screen black but the video stayed minimized and playing. NOT locking my phone just making the background black. Even after a couple of minutes. This is not a problem if you don't use the "Unlock" with fingerprint option.
6 people found this review helpful
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What’s new

- New feature: support floating button, something like Assessive Touch
- Update UI
- Fix Quick setting tile issue