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Zazen Meditation Timer vs Meditation Assistant: catalog facts
Zazen Meditation Timer	Meditation Assistant
Free Free and open source under the MIT licence.	Free Free and open source under the GPL.
Android	Android
Sessions made of several timed sections Bell sounds mark each transition	Timed sessions by duration or end time, plus untimed sessions Configurable start, interval and end sounds
Android only Focused on timing; no guided meditations or statistics mentioned	Infrequent updates Android only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
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 2, 2026

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