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arbtt vs Dayflow: catalog facts
arbtt	Dayflow
Free Free and open source under the GPL-2.0 licence.	Free Free and open source.
macOS, Linux, Command line	macOS
Fully automatic capture with no manual input Rules applied at query time so old data can be re-analysed	Builds a timeline automatically with no manual tracking Local-first, can run fully with local AI
Requires writing a rules file to get useful statistics Command-line only, no graphical reports	Mac only Relies on recording screen activity, which some users may find intrusive
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.