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Tabata Xtreme vs Exercise Timer: catalog facts
Tabata Xtreme	Exercise Timer
Free This open-source edition is free and ad-free under the MIT licence.	Free Free and open source under the GPLv3.
Android	Linux
Every interval length is configurable Saved presets for repeat workouts	Saved presets for sets and interval lengths Audible cues before and at each transition
Small project with few contributors Only for timing; no workout logging	Timer only, with no workout logging or history Linux desktop only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account 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 1, 2026

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