LeanSignal Support

LeanSignal is designed for iPhone and requires a currently supported iOS version (the exact minimum is listed on the App Store product page). It is a single-device, offline app — no account and no cloud synchronization.

Open Settings → Apple Health inside LeanSignal to grant or review access. LeanSignal requests read-only access to the measurement categories it interprets (such as weight, body-fat percentage, lean body mass, and waist circumference) and does not write its estimates back to Apple Health in the current release.

To reconnect after revoking access, open the iOS Health app → Sharing → Apps & Services → LeanSignal and re-enable the categories you want.

A new Health reading may not appear immediately — iOS delivers Health data to apps on its own schedule, and some readings arrive only after the source app or device has finished syncing. Opening LeanSignal again after a few minutes usually resolves it.

LeanSignal supports Manual, Quick, Full, and DEXA entries. Quick entries capture the essentials; Full entries add circumference and skinfold sites; DEXA entries record a scan as a calibration reference.

Your Signal Score may still be building at first: it depends on a personal baseline and noise model, which take a series of measurements to establish. LeanSignal reports uncertainty honestly rather than guessing early.

Estimates or methods may disagree — different methods measure different things with different error. LeanSignal expects this and widens its working range when methods disagree. DEXA calibration is source-specific: a scan calibrates estimates for that DEXA source, not every method at once.

Create PDF or CSV reports from the Reports section, then use the standard iOS share sheet to export them. Reports exist only where you save or share them; deleting a report inside LeanSignal removes the app’s copy but not copies you have already exported.

Add progress photos from the camera or your photo library, then use same-pose comparison to review them side by side. Photos are stored inside LeanSignal on your device. Deleting a photo in LeanSignal does not delete the original item in the system Photos app.

Enable measurement reminders in LeanSignal’s settings. Reminders are scheduled locally and contain no measurement values. If they do not appear, check iOS Settings → Notifications → LeanSignal, and confirm Focus modes or Scheduled Summary are not deferring them.

The optional privacy lock protects LeanSignal with your device’s own authentication (Face ID, Touch ID, or passcode). NovoBuild never receives biometric information. If authentication fails repeatedly, use your device passcode.

Create a full local backup from Settings → Backup and save it anywhere you choose. Restoring a backup replaces the app’s current data with the backup contents. Backups can contain progress photos and sensitive health information — store them somewhere you trust.

You can delete individual entries or photos, or erase all local data from Settings → Delete All Data. Deleting data inside LeanSignal does not delete the original Apple Health record or system Photos item, and deleting the app removes its local store (subject to normal Apple device backups).