# Screen Off Timer: Screen Lock > Automatically lock your screen, Save battery while watching, reading, listening Canonical page: [https://chrome-stats.com/d/com.cbstd.cot](https://chrome-stats.com/d/com.cbstd.cot) ## Overview - **ID:** `com.cbstd.cot` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** CreativeBoxStudio - **Category:** TOOLS - **Downloads:** 32 - **Version:** 1.2 - **Last updated:** 2026-08-30 - **First published:** 2026-08-02 - **Publisher country:** VN - **Size:** 34 MB - **Data as of:** 2026-09-08 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.cbstd.cot) - **Website:** [https://creativeboxstd.blogspot.com/](https://creativeboxstd.blogspot.com/) - **Privacy policy:** [https://creativeboxstd.blogspot.com/p/privacy-policy.html](https://creativeboxstd.blogspot.com/p/privacy-policy.html) ## Description Screen Off Timer
Automatically lock your screen after a countdown with just one tap. Whether you're reading, watching videos, studying, or falling asleep, Screen Off Timer helps save battery and protect your device by locking the screen exactly when you want.

Key Features
✓ Automatically lock the screen when the timer ends
✓ Mute media volume when the timer ends (Optional)
Automatically silence music, videos, and other media when the timer finishes.
✓ Enable Do Not Disturb when the timer ends (Optional)
Automatically enable Do Not Disturb to help prevent unwanted interruptions.

✓ One-tap quick presets:
1 minute
5 minutes
10 minutes
15 minutes
30 minutes
45 minutes
1 hour
2 hours
3 hours

✓ Set unlimited custom countdown times (Pro)
✓ Simple and intuitive interface
✓ Continue working after closing the app
✓ Works with any app
✓ Lightweight and battery friendly
✓ Optional vibration and sound
✓ Multiple language support

Perfect For
• Reading before bed
• Watching videos
• Listening to podcasts
• Studying
• Saving battery
• Automatically locking your phone after a selected time
• Silencing media when falling asleep
• Avoiding notifications and interruptions at bedtime

How It Works
Choose a preset time or set a custom countdown.
Grant Accessibility permission (required only once).
If you enable Mute Media Volume or Do Not Disturb, grant the required permission when prompted.
Tap Start.
The app will automatically apply your selected actions when the timer finishes—even if you've already closed the app.
Why Accessibility Permission?
Android requires Accessibility permission to allow Screen Off Timer to automatically lock and turn off your screen when the timer expires. Unlike older methods, this modern approach ensures you can continue to unlock your device seamlessly using your Fingerprint or Face ID. This permission is used strictly for turning off the screen—we do not access, monitor, collect, or store any personal data or screen content.
Why Do Not Disturb Access?
Android requires your permission to allow Screen Off Timer to enable Do Not Disturb automatically. This access is used only when you choose the Do Not Disturb option and can be revoked at any time from your device settings.
Download Screen Off Timer today and enjoy a simple, reliable way to automatically lock your screen and manage media and interruptions on schedule ## Rankings - #2,414,218 — 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_NOTIFICATION_POLICY` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.USE_EXACT_ALARM` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.cbstd.cot.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` ## Similar extensions and apps - [Timer Screen Auto Off](https://chrome-stats.com/d/com.gogostudio.timerscreen) — 8,629 users - [Screen Off and Lock Timer](https://chrome-stats.com/d/com.screenoff.timerlockscreen) — 502 users - [Temporizador de bloqueo](https://chrome-stats.com/d/com.hamahiru.screenlocktimer) — 21 users - [Sleep Timer: Turn Off Screen](https://chrome-stats.com/d/com.ToolCompany.screentimer) — 112,856 users, 3.92 / 5 - [Sleep Timer](https://chrome-stats.com/d/com.pome.sleeptimer) — 189 users - [Screen Lock Timer](https://chrome-stats.com/d/com.application.timershutdown) — 251 users - [Sleeping Timer: turn off music](https://chrome-stats.com/d/com.serhiidev.sleepingtimer) — 19 users - [Screen Off Video Player](https://chrome-stats.com/d/com.nobleutils.nobleplayer) — 92 users - [Screen Suite (Screen Timeout)](https://chrome-stats.com/d/com.cozyme.app.screenoff) — 768,770 users, 4.43 / 5 - [LiT](https://chrome-stats.com/d/com.app.staylit) — 15 users - [Stay Awake: Keep Screen On](https://chrome-stats.com/d/com.hellomarketing.stayawake) — 46 users - [Screen On - Stay Awake](https://chrome-stats.com/d/com.aliv3.screenon) — 4 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.cbstd.cot)