Privacy Policy

Last updated: February 25, 2026

This Privacy Policy explains how FoodKnower ("we", "us", or "our") collects, uses, and protects your information when you use our mobile application.

Data Sent to Our Server

When you perform a food scan, the following data is sent to our server:

• Food photo — JPEG-compressed, scaled to max 1024px. Used solely to identify the food via AI analysis.
• Google ID token — used to authenticate the user and enforce rate limits.
• Analysis mode — whether Basic or Premium mode was selected.

Data Stored on Our Server

We store the following data on our server:

• Google account identifier (subject ID) — a stable account identifier, not your email displayed publicly.
• Email address — for account identification.
• Account creation timestamp.
• Per-scan usage log — user ID + timestamp only, used exclusively for rate limiting.

We do not store your food photos or scan results on our server.

Data Stored on Your Device Only

The following data is stored locally on your device and is never transmitted to our servers:

• Scan history (food name, brand, scores, nutrition data, thumbnail).
• All scan results and nutrition data stay on your phone.

Third-Party Services

FoodKnower uses the following third-party services:

• Google Sign-In — authentication. Google's privacy policy applies.
• AI language-model providers — food photo identification. Each provider's respective privacy policy applies. A current list of providers is available at foodknower.com/ai-providers.
• Open Food Facts — packaged food database, bundled locally within the app. No network calls are made to Open Food Facts.

Security

• All network communication uses HTTPS.
• All AI API keys are stored server-side only — never on your device.
• Google ID tokens are verified server-side via Google's official libraries.

Contact

If you have questions about this Privacy Policy, contact us at contact@foodknower.com.