Privacy Policy

Effective date: 6 July 2026 · Last updated: 6 July 2026

TrueBurn is built to keep your health data private. Your profile, weight log, and calorie numbers live on your device. We run no servers, require no account, and we never see, sell, or share your data. Apple Health data is read-only and never leaves your phone. There is no advertising and no tracking.

1. Who we are

TrueBurn ("we", "us") is an independent app by Andy Feng. This policy covers the TrueBurn iOS app.

2. What we collect and where it lives

• The numbers you enter (sex, age, height, weight, activity, goal, optional body-fat, your logged weights and daily calories): stored only on your device using the operating system's local storage. We do not transmit it to us — we have no servers and no database.
• No account, no identifiers: we do not require sign-up, and we do not collect your name, email, phone number, advertising ID, or precise location.

3. Apple Health

• Read-only. If you choose to connect Apple Health, TrueBurn reads two things — your body weight and your dietary energy (calories) that other apps have already logged there — so it can show your weight trend and calculate your adaptive TDEE.
• We never write to Apple Health, and the data we read stays on your device. It is used only to compute your numbers locally; it is never uploaded to us or anyone else.
• You are in control. Connecting is optional, you approve the specific data in Apple's own permission screen, and you can disconnect at any time in TrueBurn or in the Health app's settings.

4. When data leaves your device

The only time anything leaves your phone is when you tap Share to send a result card — an image of your numbers — to another app (Messages, Photos, etc.). It goes wherever you choose to send it; we never see it. If you never share, nothing is ever sent off your device.

5. What we do NOT do

• We do not sell or rent your data. Ever.
• We do not use third-party advertising or analytics SDKs that track you.
• We do not build advertising profiles or share data with data brokers.
• We do not operate accounts, servers, or a cloud database that holds your data.

6. Medical disclaimer

TrueBurn is an estimation and reference tool for education and self-tracking only. It is not medical advice, diagnosis, or treatment, and is not a substitute for your doctor or dietitian. Calorie, macro, and body-composition figures are estimates. Always consult a qualified professional before making significant changes to your diet, training, or medication.

7. Children

TrueBurn is intended for a general adult audience and is not directed to children under 13. We do not knowingly collect data from children.

8. Your choices & rights

• Delete your data: because everything is stored locally, deleting the app removes all of it from your device. You can also use "Reset" inside the app.
• Disconnect Apple Health at any time — TrueBurn stops reading immediately and keeps working with anything you enter manually.
• Depending on your region (e.g. GDPR/CCPA), you may have rights to access or delete personal data. Since we hold no personal data on any server, you exercise these on-device as above; contact us with any questions.

9. Data retention

We retain nothing on our side. Your data persists on your device until you delete it.

10. Changes to this policy

We may update this policy; we'll change the "Last updated" date above and, for material changes, surface a notice in the app.

11. Contact

Questions about this policy or your data: kilik911@gmail.com.