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Iremi Breathing App vs Kalm: catalog facts
Iremi Breathing App	Kalm
Free Free and open source.	Free Free and open source under GPL-2.0-or-later.
Android	Linux
Several established breathing techniques with adjustable pacing Clear visual cues for inhale, exhale and hold	Includes several breathing techniques Has regular KDE Applications releases
Android only Small project with one main developer	Linux only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0-or-later
Not stated if an account is needed	Not stated if an account is 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 8, 2026

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