Privacy Policy
Last updated: March 6, 2026
1. Overview
MCSolver ("we", "us") respects your privacy. This policy explains what data we collect and how it is used when you use the MCSolver application or website.
2. Data We Collect
To operate the service we may process the following data:
- Device identifier (hashed) used to associate credits with your device.
- Device authentication secret stored as a hash for login verification.
- Email address provided by Stripe during checkout to deliver license keys or redemption codes.
- IP address and user agent used for security, abuse prevention, and basic analytics.
- Feedback messages if you contact us through the app or website.
3. Screenshots
When you use the solving feature, the application captures a screenshot and sends it to the processing provider to generate an answer. Screenshots are processed only for this purpose and are not stored on our servers.
4. Third-Party Services
- OpenAI – AI processing of screenshots.
- Stripe – Payment processing.
- Resend – Transactional email delivery.
- Apple DeviceCheck – Trial eligibility verification.
These providers process data according to their own privacy policies.
5. Legal Basis (GDPR)
If you are located in the European Economic Area, we process your data under the following legal bases:
- Contract performance – to provide the MCSolver service.
- Legitimate interest – to maintain security, prevent abuse, and improve the service.
6. Data Retention
We retain data only as long as necessary to operate the service or comply with legal obligations. You may request deletion of your data at any time.
7. Your Rights
Under the General Data Protection Regulation (GDPR), you may request access, correction, or deletion of your personal data and may object to certain types of processing.
8. Cookies
The MCSolver website does not use cookies or tracking scripts.
9. Contact
For privacy questions or data requests, contact: