Privacy Policy

Last updated: April 6, 2026

This Privacy Policy explains how SnapCal collects, uses, stores, and shares information when you use the app. If you have any questions, contact us at snapcal@tuanle.dev.

1. What SnapCal Does

SnapCal is a general wellness app for calorie tracking, food logging, weight tracking, activity insights, and optional AI-powered nutrition features. SnapCal is not a medical device and does not provide medical diagnosis or treatment.

2. Information We Collect

A. Information you enter in the app

Depending on how you use SnapCal, we may process information such as:

B. Health and wellness data

If you grant Health access, SnapCal may read wellness and activity data from Apple's Health framework, such as:

If you choose to sync information back to Health, SnapCal may write nutrition, hydration, weight, and workout entries.

C. Analytics data

We may collect limited product interaction and diagnostics-style usage data through analytics tools to understand app usage and improve the product.

3. How We Use Information

4. AI Processing

SnapCal includes optional AI-powered features that can be turned off in Settings. No data is sent to any AI service until you explicitly enable AI features and provide consent. When AI features are enabled, SnapCal sends data to Google Gemini AI through Firebase AI services for processing. The specific data sent depends on which AI feature you use:

AI Camera (Food Photo Analysis)

AI Chat Assistant

AI Coach & Metabolism Coach

Meal Plans & Nutrition Planning

Ghost Calories Detection

Weight AI & Text-Based Food Analysis

All AI data is processed by Google's Gemini AI models (including Gemini 2.5 Pro, Gemini 2.5 Flash, and Gemini 3.1 Flash Lite) through Firebase AI services. Google processes this data in accordance with the Firebase Data Processing Terms.

5. Local Storage and On-Device Data

SnapCal stores app data locally on your device using on-device storage technologies such as Core Data and app storage. Meal photos are stored locally only if you choose to enable local photo saving.

6. Analytics and Tracking

SnapCal does not use advertising tracking and does not request App Tracking Transparency permission. We do not track you across third-party apps or websites for advertising purposes.

7. Data Sharing

We do not sell your personal data. We share data with the following service providers strictly to operate app functionality:

8. Data Retention

We retain data for as long as needed to provide the app's functionality, comply with legal obligations, resolve disputes, or enforce agreements.

9. Your Choices and Controls

For formal privacy or deletion requests related to service-provider processing, contact us at snapcal@tuanle.dev.

10. Children's Privacy

SnapCal is not directed to children under the minimum age required by applicable law.

11. International Data Transfers

If service providers process data in countries outside your own, your information may be transferred and processed in those countries subject to applicable safeguards.

12. Security

We use reasonable administrative, technical, and organizational measures to protect information. However, no system can guarantee absolute security.

13. Medical Disclaimer

SnapCal is intended for general wellness support only. It is not a substitute for professional medical, nutrition, or healthcare advice. Always consult a qualified professional for medical decisions.

14. Changes to This Policy

We may update this Privacy Policy from time to time. We will post the updated version with a revised "Last updated" date.

15. Contact

If you have questions about this Privacy Policy, contact:
SnapCal
snapcal@tuanle.dev
snapcal.tuanle.dev