Privacy Policy
This Privacy Policy explains how Serious Trainer ("we", "us", "our") collects, uses, shares, and protects your information when you use the Serious Trainer mobile app and related services.
1. Developer and Contact
Developer: Mathurin Company
If you have privacy questions, contact us at:
2. Data We Collect
Depending on how you use the app, we may collect:
- Account data: name, email address, profile image, authentication identifiers.
- Fitness and wellness data you provide: workout logs, sets/reps/weight/duration, session notes, mood, body part and pain-condition logs.
- AI chat content: prompts, responses, and thread metadata you create in the in-app assistant.
- App usage and diagnostics: analytics events, screen interactions, device platform data, and timestamps.
- Local app storage data: tokens and preferences stored on your device for sign-in and app functionality.
3. How We Use Data
- Provide and maintain core app features.
- Authenticate accounts and keep users signed in.
- Generate AI coaching responses and workout support.
- Improve app performance, reliability, and product experience.
- Detect and prevent abuse, fraud, and security issues.
4. Data Sharing
We do not sell personal or sensitive user data. We may share data with service providers that support app operations, such as:
- Google/Firebase services (authentication and analytics).
- Backend infrastructure providers used to deliver app features.
We may also disclose data when required by law, to enforce our terms, or to protect users and services.
5. Security
We use reasonable technical and organizational safeguards designed to protect your data, including encrypted transmission over HTTPS and access controls where appropriate.
6. Data Retention
We retain personal data for as long as necessary to provide the service, comply with legal obligations, resolve disputes, and enforce agreements. Data retention may vary by data type and legal requirements.
7. Account and Data Deletion
If you want to delete your account and associated data, submit a request by email:
Please include the email used for your account. We may request additional verification before processing. Some data may be retained when required for legal, security, fraud-prevention, or compliance reasons.
Deletion request web link: https://serioustrainer.co.uk/privacy#account-deletion
8. Children
Serious Trainer is not intended for children under 13 (or older minimum age where required by local law). If you believe a child has provided personal data, contact us so we can take appropriate steps.
9. Changes to This Policy
We may update this policy from time to time. Material updates will be reflected by changing the Last updated date above.
10. Public Policy URL
This policy is intended to be published at: