Privacy Policy

MealSight (餐识) · Last updated: 10 July 2026

MealSight ("the app", "we", "us") is a meal-photo nutrition app. This policy explains what data the app handles and how. We designed the app to collect as little as possible. There are no user accounts, and we do not ask for your name, email, or contact information.

1. Information the app handles

• Meal photos. When you take or choose a photo to analyze, the image is sent to our processing backend and on to a third-party AI vision provider to identify the food and estimate nutrition. The image is used only to produce your result. Our backend does not store your photos; it forwards the request and returns the result.
• A random device identifier. The app generates a random per-installation identifier and a device-attestation key used solely to prevent abuse and apply fair-use rate limits to the analysis service. It is not linked to your identity and is not used for advertising or tracking.
• Health data (optional). If you grant permission, the app writes the nutrition of meals you save (energy and macronutrients) to Apple Health, and may read activity/body metrics to provide context. This data stays on your device within Apple Health and is not transmitted to us.
• Subscription status. If you subscribe, the purchase is processed by Apple through the App Store. We receive only whether an entitlement is active — we never receive your payment details.
• Your meal history. Saved meals, their photos, and analysis results are stored locally on your device. They are not uploaded to our servers.

2. How we use it

Solely to provide the app's features: recognizing food from your photo, estimating nutrition, letting you record meals, optionally syncing nutrition to Apple Health, preventing abuse of the analysis service, and managing your subscription entitlement. We do not use your data for advertising or profiling.

3. Third parties

• AI vision provider (MiniMax). Receives the meal image to perform the analysis, under its own privacy terms.
• Cloudflare. Hosts the backend that relays analysis requests.
• Apple. Provides In-App Purchase (subscriptions) and HealthKit.

We do not use third-party analytics or advertising SDKs, and we do not sell your data.

4. Data retention

Our backend does not retain your photos after a request completes. Data stored on your device (meal history and photos) remains until you delete it in the app or uninstall the app. Health data is retained by Apple Health under your control.

5. Your choices

• Delete individual meals in the app, or remove all app data by uninstalling.
• Manage or revoke Health permissions in the iOS Health app or Settings.
• Manage or cancel your subscription in your Apple account settings.

6. Children

The app is not directed to children under 13 and does not knowingly collect personal information from them.

7. Security

Requests are transmitted over encrypted connections (HTTPS). The analysis service uses device attestation to help ensure requests come from the genuine app.

8. Changes

We may update this policy; material changes will be reflected on this page with a new "last updated" date.

9. Contact

Questions about this policy: wangyaominde@gmail.com