zzzGuard : Auto Lock on Sleep

zzzGuard : Auto Lock on Sleep is a compact utility that automatically locks your phone when you stop interacting with the screen, preventing overnight battery drain, pocket dials and accidental late-night messages. The app watches for inactivity and displays a short 'Still watching?' prompt; if you don't confirm, your device locks after your chosen timeout. If you often fall asleep while streaming or hand your device to others, zzzGuard : Auto Lock on Sleep offers per-app control, scheduled active hours and a configurable timeout so your screen only stays on when you really need it.

Key Features

⭐ Auto screen lock on inactivity with a customizable timeout from 5 to 60 minutes.

⭐ Per-app or global monitoring so you can target apps like video players or enable system-wide protection.

⭐ Custom schedule / sleep timer to run the service only during chosen hours, for example overnight.

⭐ Smart 'Still watching?' prompt with a short countdown that gives you a chance to stop the lock.

⭐ 100% offline and private — no internet permissions, no analytics, no data collection; everything runs on-device.

Advantages

✅ Reduces battery drain by ensuring the screen locks when you stop interacting with the device.

✅ Prevents accidental taps, pocket dials and unintended messages during idle periods.

✅ Respects privacy by operating entirely offline and not transmitting or storing usage data.

✅ Lightweight and unobtrusive with scheduled activation so zzzGuard : Auto Lock on Sleep only runs when you want it to.

Disadvantages

❎ Requires Accessibility Service permission to detect inactivity and perform the lock action.

❎ Minimum timeout is 5 minutes, so very short delays under that threshold are not supported.

❎ Requires Android 9 or later and will not run on older devices.

Development Team

Offered by 1 Dollar Apps, the listing identifies the developer as the publisher of zzzGuard : Auto Lock on Sleep.

Market Performance

Downloads are listed as 0+ downloads and the content rating is Everyone. Compatibility notes include specific device entries and the app requires Android 9 and up.

Version Information

Version ZZZ_GUARD_1.0_BETA, released Apr 10, 2026 and updated Apr 11, 2026. The app package is approximately 3 MB.