Privacy Policy
Last updated: February 15, 2026
1. Information We Collect
Account Information
When you create an account, we collect your email address for authentication. We use passwordless login and do not store passwords.
Body Measurements
To generate fit recommendations, we store measurements you provide, such as height, inseam, and optional dimensions.
Fit Session Data
We store riding preferences, questionnaire answers, recommendations, and session history to provide and improve the service.
2. How We Use Your Information
- Generate personalized bike fit recommendations
- Send requested fit reports by email
- Maintain session history and bike profiles
- Improve algorithm quality
- Communicate important service updates
3. Third-Party Services
Convex (Database)
We use Convex for secure data storage and application backend functionality.
Resend (Email)
We use Resend to deliver verification codes and requested reports by email.
4. Data Retention
We retain account and fit-session data while your account is active. You can request deletion of your account and associated data at any time.
5. Cookies
We use essential cookies for authentication, session management, and language preference. Optional analytics cookies are only used after you grant consent. We do not use advertising trackers.
6. Your Rights
- Access your personal data
- Correct inaccurate information
- Request account deletion
- Request portable export of your data
7. Security
We use technical and organizational safeguards including HTTPS, input validation, and runtime protection controls.
8. Contact
For privacy-related questions, contact us at support@bestbikefit4u.eu.