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Prog Metronome vs Chronal: catalog facts
Prog Metronome	Chronal
Free Free and open source under the GPL-3.0.	Free Free and open source, with no ads.
Android	Android
Polyrhythm, polymeter and metric modulation support Nested pattern groupings and repeats	Notation editor for hearing written rhythms Two synchronised metronomes for polyrhythms
Android only More involved to set up than a basic click metronome	Android only Licence information differs between the repository and the F-Droid listing
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it 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 2, 2026

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