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Calm vs Insight Timer: catalog facts
Calm	Insight Timer
Freemium Can be tried for free, with the full library in a paid subscription.	Freemium Large free library of guided sessions, with an optional paid membership.
Android, iOS	Android, iOS
Large library of guided meditations and sleep content Soundscapes for relaxing or falling asleep	Large library of free guided sessions Built-in timer for unguided meditation
Much of the content requires a paid subscription Proprietary service that needs an account	Proprietary service Some content is reserved for paying members
Downloadable app	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Account 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 September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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