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Ambio vs Forest: catalog facts
Ambio	Forest
Free Free and open source under the MIT licence.	Freemium Free to start, with paid plans for more features.
Android	Android, iOS, Browser extension
Mix up to three ambient sounds with separate volume levels Pomodoro presets built in	Simple game mechanic that discourages switching apps Visual history of your focus sessions
Android only Sound library limited to twelve sounds	Mobile only Some features require a paid plan
Downloadable app	Downloadable app, Browser extension
Open source	Closed source
License: MIT	License not stated
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 September 23, 2026

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