Common questions about manual logging, read-only Apple Health import, the free core experience, Depthline Plus, and local data.
Depthline stores manual readings, imported Health readings, preferences, target settings, and app state locally on your device. A derived trend snapshot may also be shared locally with Depthline widgets. Depthline does not send weight readings to a developer-operated server.
No. Depthline does not require an account, login, profile, or social feature.
No. Depthline can read approved body-weight data when you allow it, but does not write body-weight readings to Apple Health.
Yes. Manual logging is included and remains available when Health access is declined or unavailable.
A useful trend needs enough readings over time. Depthline keeps early states cautious instead of presenting a few readings as a settled signal.
Free access includes full approved Apple Health synchronization and history, manual add, edit, and delete, every Logbook record, the 30-day Trend and Voyage, CSV export, settings and data controls, widgets, shortcuts, and Depthline Yellow.
Depthline Plus is one optional, non-consumable purchase. It unlocks the 90-day, 1-year, and all-time Voyage ranges plus Arctic White, Kelp Green, and Beacon Orange vessel styles. There is no subscription.
No. Health synchronization, manual logging, the complete Logbook, editing, deletion, and CSV export remain available without Plus.
Open Settings from Trend, Logbook, or Voyage, select Depthline Plus, and tap Restore Purchases. Restoration uses your Apple Account purchase history and does not depend on local weight data.
No. Depthline is a personal trend utility, not a medical device, diagnosis, treatment, diet plan, or coaching product.
Depthline is intentionally narrow: personal weight trend, optional read-only Health import, manual logging, and honest sparse-data states. For a question not covered here, use the contact page or email support.