Terms of Service

1. Service Description

ChessArc is a chess review website that provides:

• Free unlimited chess game analysis and reviews
• AI-powered move explanations (limited to 5 per day for free users)
• Game history storage for registered users
• Pro subscription plan for unlimited AI explanations

2. User Accounts

Anonymous Use

You may use our basic chess review features without creating an account.

Account Registration

To access premium features including game history, AI explanations, and Pro subscription benefits, you must create an account using a valid email address. You are responsible for:

• Maintaining the confidentiality of your account credentials
• All activities that occur under your account
• Providing accurate and current information

3. Subscription Plans

Payment Terms

• Subscriptions automatically renew monthly unless cancelled
• You may cancel your subscription at any time through your account settings
• Cancellation takes effect at the end of your current billing period
• No refunds are provided for any subscription fees

4. Acceptable Use

You agree to use the Service only for lawful purposes and in accordance with these Terms. You may use the Service for both personal and commercial purposes.

Rate Limits

Free users are limited to 5 AI explanations per 24-hour period. This limit resets daily and cannot be bypassed without upgrading to Pro.

5. Content and Data

Your Content

You retain ownership of any chess games (PGN files) you upload or input into our Service. By using our Service, you grant us a license to process and analyze your games to provide our services.

Data Storage

We store:

• Your email address (for registered users)
• Chess games you've analyzed
• AI explanations generated for your games
• Usage analytics via Vercel Analytics

Data Deletion

Currently, users cannot delete their stored data directly. To request data deletion, please contact us at [your support email].

6. Third-Party Software

This Service uses the following third-party software:

7. Privacy and Analytics

We collect and process personal data in accordance with our Privacy Policy. We use Vercel Analytics to understand how our Service is used and to improve user experience.

8. Intellectual Property

The Service, including its design, functionality, and content (excluding user-uploaded games), is owned by ChessArc and protected by intellectual property laws. You may not copy, modify, distribute, or reverse engineer any part of our Service.

9. Service Availability

We strive to maintain high availability but do not guarantee uninterrupted access to the Service. We may temporarily suspend the Service for maintenance or updates.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, CHESSARC SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING OUT OF OR RELATING TO YOUR USE OF THE SERVICE.

11. Indemnification

You agree to indemnify and hold ChessArc harmless from any claims, damages, or expenses arising from your use of the Service or violation of these Terms.

12. Modifications to Terms

We reserve the right to modify these Terms at any time. We will notify users of material changes by posting the updated Terms on our website. Continued use of the Service after changes constitutes acceptance of the new Terms.

13. Termination

We may terminate or suspend your account and access to the Service immediately, without prior notice, for any violation of these Terms. You may terminate your account at any time by contacting us.

14. Governing Law

These Terms are governed by and construed in accordance with the laws of England and Wales. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the courts of England and Wales.

15. Contact Information

For questions about these Terms or our Service, please contact us:

• Email: chessarcapp@gmail.com
• Support Page: https://chessarc.app/contact

16. Severability

If any provision of these Terms is found to be unenforceable, the remaining provisions will remain in full force and effect.