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Ambio vs Goodtime: catalog facts
Ambio	Goodtime
Free Free and open source under the MIT licence.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Mix up to three ambient sounds with separate volume levels Pomodoro presets built in	No ads or tracking Supports both Pomodoro and flow-style sessions
Android only Sound library limited to twelve sounds	Listed for Android only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-only
No account needed	Not stated if an account is needed
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.