Device Watch

Device Watch

System monitor widget with per-app usage insights and a charging screensaver

jrs8205 System

Download (3.7 MB)

Screenshots

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Description

Device Watch is an Android device monitor with a home-screen widget, per-app usage insights and an interactive screensaver for charging or docked use. It works completely offline: the app has no internet permission, and every number is real data read from Android and kernel sources — when a value is not available with the permissions granted, the app shows a dash instead of a fabricated value.

Features:

* Home-screen widget: battery, memory, CPU, storage, Wi-Fi, mobile network, data usage, uptime, today's screen time and last update time
* Data counters per calendar day or per one-month billing cycle with a configurable start day
* Tabbed dashboard: Overview (live battery ring, usage counters, system meters), Apps (usage insights), Device (hardware, SIM and Wi-Fi details) and Settings
* Screen-time donut of your most-used apps, top data consumers and a last-opened list with per-app uninstall
* Usage counters with a private 62-day daily history kept on the device: screen time, unlocks, filtered notification count, restarts and charging sessions
* On-device notification log with 7-day retention
* Since-charge view: elapsed time, battery drop, average drain and per-app screen time since the battery was last charged full or unplugged
* Interactive screensaver with a large clock, next alarm, charging power in watts, battery-tinted background, optional night dimming and a battery-full notification

All statistics stay on the device. Nothing is uploaded anywhere.

What’s new (1.4.1)

• The screen time card on the Since charge page now has its own title instead of reusing "Screen time today"
• The APK no longer embeds Google's encrypted dependency-info block, enabling F-Droid reproducible builds

Versions

Version Date Size Requires Android Download
1.4.1 current
07bc2109832ed25e…
 2026-07-18 3.7 MB API 26

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Run at startupStart automatically after the device is switched on.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • FOREGROUND_SERVICE_SPECIAL_USE
  • NotificationsShow notifications.
  • Network stateCheck whether and how the device is connected.
  • Wi-Fi stateRead information about the Wi-Fi connection.
  • Approximate locationDetermine the location via the network.
  • Precise locationDetermine the location via GPS.
Show 7 more permissions
  • NEARBY_WIFI_DEVICES
  • Phone stateDetect ongoing calls and read device information.
  • PACKAGE_USAGE_STATS
  • Installed appsSee which apps are installed.
  • REQUEST_DELETE_PACKAGES
  • Prevent sleepingKeep the device from going to sleep.
  • devicewatch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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