Withings requires $100/year Withings+ subscription for new users to sync Apple Health
Withings has begun restricting automatic syncing of health data to Apple Health and other third-party apps for accounts created after October 13, confirmed via an official forum response. New users without a Withings+ subscription, priced at $100 annually, must manually export and upload their data instead. Existing accounts created before that date are unaffected by the change.