Mobile app · System & repair

Device Watch

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

Completely free
Android
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by F-Droid
License: GPL-3.0+ — Open source (copyleft)confirmed by F-Droid
Open source: Yes
Commercial use: Yesconfirmed by F-Droid
Account required: not documented
Credit card required: Noconfirmed by F-Droid
Watermark: Not applicable
Ads: No
Platforms: AndroidEstablished by Android: F-Droid
Distribution: Available on F-Droid
Publisher: jrs8205
Latest version: 1.11.0 (9 November 2026)
Latest activity: 9 November 2026
Source code: github.com/jrs8205/Device-Watch

Overview

Device Watch is a system monitoring mobile app, available on Android.

Features described in its F-Droid listing and in its GitHub repository: reminders and due dates, statistics and charts, home screen widgets.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“System monitor widget with per-app usage insights and a charging screensaver” — F-Droid, 10 November 2026
“Optional charge reminders, mobile-data quota warnings and alerts for a hot battery, low storage or fast battery drain” — F-Droid, 10 November 2026
“Optional extended access through Shizuku or root, off by default: the real CPU load, chip temperatures, graphics load, the battery's own wear figures, and Android's battery statistics since the last charge (drain…” — F-Droid, 10 November 2026
“Optional extended access through Shizuku or root, off by default: the real CPU load, chip temperatures, graphics load, the battery's own wear figures, and Android's battery statistics since the last charge (drain…” — F-Droid, 10 November 2026
“Device Watch is an Android device monitoring app with Jetpack Glance home screen widgets, per-app usage insights (screen time, data, notifications and more), and an interactive screensaver for charging or docked use.” — GitHub, 10 November 2026

At a glance

All of Device Watch is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
No advertising
Commercial use allowed

Sources and checks

Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) — 9 November 2026
Last technical check: 6 November 2026
Description from F-Droid — F-Droid (citation courte)

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