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

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