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