On-device processing, with exports you control
EveryBand reads supported strap data over Bluetooth, processes it on your iPhone, and writes permitted records to Apple Health. EveryBand does not upload strap history or Apple Health data to EveryBand-operated servers.
You can choose to export or share files and authorize Apple Health writes. Those actions can move data outside EveryBand. Apple Health synchronization and device backup follow your Apple settings; this policy does not claim that no health data ever leaves the phone.
Optional diagnostic exports can include original biometric bytes and device identifiers. They are shared only when you explicitly choose a destination.
Local app storage can contain offload progress, decoded samples, export identifiers, derived estimates, settings, and an activity log needed to recover safely and avoid duplicate writes.