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ActivityWatch vs Screen Time: catalog facts
ActivityWatch	Screen Time
Screenshots	No screenshots available
Best for: Track how you spend time on your computer with locally stored activity data	Best for: Checking phone usage privately without a cloud service
Free The open-source application is available without a license fee.	Free Free and open source with optional donations.
Windows, macOS, Linux, Android, Browser extension	Android
Separate watchers let you choose what to record	Per-app and per-hour usage graphs No internet permission and no data collection All 3 strengths for Screen Time Per-app and per-hour usage graphs No internet permission and no data collection No ads
Browser activity needs the appropriate watcher.	Tracks usage only; no app blocking or limits mentioned Android only
Downloadable app, Browser extension	Downloadable app
Open source	Open source
License: MPL-2.0	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for ActivityWatch github.com/ActivityWatch/activitywatch play.google.com/store/apps/details f-droid.org/packages/net.activitywatch.android Catalog checked September 22, 2026	Official website Full listing and sources Sources for Screen Time atharok.gitlab.io/site/projects/screen-time Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.

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