This app is used by one person only (its owner). It reads the owner's own Google Health data (weight, body composition, sleep) with read-only access and stores it on the owner's private server for display in their personal dashboard.
No data is shared, sold, or sent to third parties. No other users' data is collected. Access can be revoked at any time at https://myaccount.google.com/permissions.
Contact: the support email shown on the Google consent screen.