Where Does Glow Store Cycle Data?
Glow fertility logs and community data on the account with device cache.
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Glow keeps cycle logs, ovulation predictions, pregnancy tracking and partner linked data on the account with per device cache for offline charting. Community posts and messages live server side under the same login.
Like all health trackers of this kind, the account is the backup and anonymous use has none. Export from settings before wipes for a portable copy. Partner sharing links both accounts to one chart without merging identities.
Where Glow stores this, by platform
App-private storage (cache; logs on your account)
Charts and predictions sync on login. Clearing app data drops cached images and offline charts; the account restores the record. Export before resetting.
App sandbox (cache; logs on your account)
Same model on iPhone with HealthKit bridges where enabled. Premium insights follow the subscription. Deleting without an account erases everything.
Frequently asked questions
how do I back up Glow data
Use an account so logs sync, plus settings export for a file copy. Partner linked charts need both accounts intact; one deletion breaks the shared view.
does Glow work with Apple Health
It reads and writes selected categories with permission, managed in iOS settings. The Glow account cloud stays separate from HealthKit either way.
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