Having trouble? Check the FAQ below first. If it doesn't help, email me and I usually reply within 3 business days.
All data (photos, weight, water, quit records) is stored only on your device — no account, no cloud. Uninstalling the app deletes all local data permanently. Please use Settings → Data & Privacy → Export Backup before uninstalling.
When switching phones, export a backup on the old device and import it on the new one.
The capture screen has a guide frame to help with composition. Shoot in even lighting with a simple background, and keep the same angle and distance as last time for more reliable comparisons. You can also pick any two dates to compare in "See change".
Subscriptions renew automatically. To cancel, go to Settings → Apple ID → Subscriptions; benefits last until the end of the current period. For refunds, use the App Store "Report a Problem" page — we can't process refunds directly.
BMI, body-fat estimate and daily water target are estimates calculated from public formulas and are not medical advice. Consult a licensed doctor for any health concerns.
Backups can optionally be encrypted (Settings → Data & Privacy → Export Backup). Keep your password safe — if you lose it, the backup cannot be decrypted and we can't help you recover it.
Email lisihan@outlook.com and include: your device model and iOS version, the app version (see About), and steps to reproduce the issue.