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.
⭐ 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.
✅ 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.
❎ 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.
Offered by 1 Dollar Apps, the listing identifies the developer as the publisher of zzzGuard : Auto Lock on Sleep.
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 ZZZ_GUARD_1.0_BETA, released Apr 10, 2026 and updated Apr 11, 2026. The app package is approximately 3 MB.
