The Weight Watcher (theweightwatcher.shnbk.de) is a private tool of one person, who is also its only user. This page describes what it does with data.
Body weight readings (and the electrical impedance values) of the owner's smart scale, with the time of the measurement. No other personal data is collected from anyone.
googlehealth.health_metrics_and_measurements.writeonly).
It does not read data from Google Health.
The app's use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.
The owner can revoke the app's access at any time at myaccount.google.com/permissions and delete the written weight entries in the Google Health app. Questions: dicky.dicky.tww@gmail.com.