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Flexify vs Spix: catalog facts
Flexify	Spix
Free Free and open source.	Free Free and open source under the AGPL-3.0, with no subscription.
Android	Android
Works fully offline Progress graphs and rest timers	Automatic rep counting with the camera GPS run tracking with maps
No generated training plans or coaching Small project maintained mainly by one developer	Android only Small project by a single developer with no dedicated product page
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: AGPL-3.0
No account needed	No account needed
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.