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Welltory vs Gentler Streak: catalog facts
Welltory	Gentler Streak
Freemium Free to start, with some features in a paid subscription.	Freemium Free to download, with a paid tier.
Android, iOS	iOS
Combines data from wearables and phone measurements in one place Explains readings as plain guidance instead of raw numbers	Daily guidance that accounts for rest Focus on consistency instead of fixed goals
Proprietary app with health data processed by the developer Not a medical device or a substitute for medical advice	Apple devices only Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
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 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.