MacroSee
Privacy Policy
Last updated: 21 February 2026
MacroSee ("we", "our", "us") is a nutrition tracking application that analyses food photos to estimate macronutrient content. This privacy policy explains what data we collect, why we collect it, how we use it, and your rights regarding that data.
This policy applies to the MacroSee mobile application (Android) and the MacroSee web application at macrosee.app.
1. Developer Information
Developer: Gerald Sim
Contact: [email protected]
Website: macrosee.app
2. Data We Collect
| Data Category | Specific Data | Source |
|---|---|---|
| Account information | Name, email address, profile photo URL | Google Sign-In |
| Body profile | Height, weight, date of birth, gender, activity level, fitness goal, sport | User input |
| Food photos | Photos taken or uploaded by the user for meal analysis | Device camera or gallery |
| Meal data | Food descriptions, macronutrient estimates (calories, protein, carbs, fat, fibre), meal type, timestamps | AI analysis of photos; user corrections |
| Daily nutrition goals | Calorie and macronutrient targets | Calculated from profile or set manually |
3. Data We Do Not Collect
- We do not collect precise location data
- We do not collect device identifiers or advertising IDs
- We do not use analytics SDKs, tracking pixels, or advertising networks
- We do not collect contacts, call logs, or messages
- We do not collect financial or payment information
4. How We Use Your Data
| Purpose | Data Used |
|---|---|
| Authenticate your account | Google account information |
| Analyse food photos for nutritional content | Food photos, meal type |
| Calculate personalised nutrition goals | Height, weight, date of birth, gender, activity level, fitness goal |
| Display your daily and historical nutrition data | Meal data, daily goals |
| Generate AI-powered nutrition recommendations | Body profile data (no photos) |
5. Third-Party AI Services
Important: MacroSee sends data to third-party AI services to provide its core functionality. By using MacroSee, you consent to this processing.
We use the following AI services to analyse food photos and generate nutrition recommendations:
| Service | Provider | Data Sent | Purpose |
|---|---|---|---|
| Claude API | Anthropic, PBC | Food photos; body profile (for recommendations only — no photos) | Food recognition, macro estimation, personalised recommendations |
| Gemini API | Google LLC | Food photos (when configured as fallback provider) | Food recognition, macro estimation |
These providers process your data under their respective privacy policies:
Anthropic and Google do not use data submitted via their APIs to train their models. Your food photos are processed and not retained by these providers beyond the duration needed to return a response.
6. Third-Party Authentication
We use Google Sign-In to authenticate users. When you sign in, Google provides us with your name, email address, and profile photo URL. We do not receive or store your Google password. Google's privacy policy applies to the sign-in process: Google Privacy Policy.
7. Data Storage and Security
- Your data is stored on servers hosted on AWS infrastructure (Sydney, Australia region)
- Data is stored in a PostgreSQL database with restricted access
- Food photos are stored on encrypted persistent volumes
- All network communication uses TLS/HTTPS encryption
- Authentication uses JWT tokens with expiry
- Server access is restricted to the developer via SSH with key-based authentication
8. Data Retention
- Account data: Retained for as long as your account exists
- Meal data and photos: Retained for as long as your account exists, unless you delete individual meals
- AI processing: Food photos sent to AI providers are not retained by those providers after processing
9. Your Rights
You have the following rights regarding your personal data:
- Access: You can view all your data within the app (profile, meal history)
- Correction: You can edit your profile and correct meal data at any time
- Deletion of individual meals: You can delete any meal and its associated photo from within the app
- Account deletion: You can request complete deletion of your account and all associated data by contacting us at [email protected]. We will process deletion requests within 30 days
- Data export: You can request a copy of your data by contacting us at [email protected]
10. Data Sharing
We do not sell, rent, or trade your personal data. We only share data with the third-party services listed in sections 5 and 6, and only as necessary to provide the app's core functionality.
We may disclose data if required by law, regulation, or legal process.
11. Children's Privacy
MacroSee is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected data from a child under 13, we will promptly delete that information. If you believe a child under 13 has provided us with personal data, please contact us at [email protected].
12. Camera and Photo Permissions
MacroSee requests access to your device camera and photo library solely for the purpose of capturing or selecting food photos for nutritional analysis. Photos are only accessed when you explicitly choose to take or select a photo. We do not access your camera or photo library in the background.
13. Changes to This Policy
We may update this privacy policy from time to time. When we make material changes, we will update the "Last updated" date at the top of this page. We encourage you to review this policy periodically.
14. Contact Us
If you have any questions, concerns, or requests regarding this privacy policy or your personal data, please contact us:
Email: [email protected]
© 2026 MacroSee. All rights reserved.