Privacy Policy

Last updated: March 2026

Data Collection

Blue2Scale collects the following data when you create an account:

• Google account information (name, email, profile image) via OAuth
• Body composition measurements from your BLE scale
• Profile information you provide (height, age, sex, activity level)

Data Storage

All measurement data is stored on our servers. Guest users' data is stored locally in the browser and is not transmitted to our servers.

Data Usage

Your data is used solely to provide you with body composition tracking and analysis. We do not sell, share, or use your data for advertising purposes.

Data Deletion

You can delete your account and all associated data at any time from the Settings page. This action is permanent and cannot be undone.

Bluetooth Data

BLE communication happens directly between your browser and your scale. Raw BLE packet data is stored alongside measurements for diagnostic purposes.

Contact

For privacy-related questions, open an issue on the GitHub repository.