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Privacy Friendly Circuit Trainer vs Privacy Friendly Interval Timer: catalog facts
Privacy Friendly Circuit Trainer	Privacy Friendly Interval Timer
Free Free and open source under the GPL-3.0 with no ads.	Free Free and open source under the GPL-3.0 licence, with no ads.
Android	Android
Configurable exercise and rest timers Custom exercises combined into sets	Configurable exercise and rest timers Daily, weekly and monthly training statistics
Android only Calorie figures are estimates based on MET values	Android only Calorie figures are estimates based on MET values
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	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.