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Privacy Policy

Last updated: Nov 25, 2025

Introduction

At ChessDrills, we're committed to protecting your privacy and ensuring you understand how we use your data. This Privacy Policy explains what information we collect, how we use it, and what rights you have regarding your data.

Information We Collect

We collect information from you in several ways:

  • Email Address: We collect your email address when you create an account.
  • Chess Account Information: We collect your Lichess and/or Chess.com username when you connect these accounts.
  • Game Data: We import and analyze your game history from Lichess and Chess.com to identify your opening blindspots.
  • Usage Data: We collect information about how you use ChessDrills, including the pages you visit, the features you use, and how long you spend on each activity.
  • Device Information: We may collect information about the device you use to access ChessDrills, such as browser type, operating system, and IP address.

How We Use Your Information

We use the information we collect for the following purposes:

  • Training Analysis: To analyze your games and create personalized training plans targeting your specific blindspots.
  • Personalization: To customize your experience on ChessDrills and provide relevant recommendations.
  • Communication: To send you important notifications about your account and new features.
  • Service Improvement: To understand how users interact with our platform and improve our services.
  • Legal Compliance: To comply with applicable laws and regulations.

Cookies and Tracking

We use cookies and similar tracking technologies to enhance your experience on ChessDrills:

  • Authentication Cookies: We use cookies to keep you logged in and maintain your session.
  • DataFast Analytics: We use DataFast to analyze how users interact with ChessDrills and to improve our product.
  • Vercel Analytics: We use Vercel Analytics to monitor the performance of our website.

You can control cookies through your browser settings. However, disabling cookies may affect your ability to use certain features of ChessDrills.

Third-Party Services

ChessDrills uses the following third-party services, which may collect and process your data:

  • Lichess API: When you connect your Lichess account, we access your game data through the Lichess API. Please review Lichess's privacy policy for more information.
  • Chess.com API: When you connect your Chess.com account, we access your game data through the Chess.com API. Please review Chess.com's privacy policy for more information.
  • DataFast: We use DataFast for analytics.

We are not responsible for the privacy practices of third-party services.

Data Retention

We retain your data for as long as your account is active. If you delete your account, we will delete your personal data as soon as practically possible, though some data may be retained for legal or operational reasons.

Your Rights

Depending on your location, you may have certain rights regarding your personal data:

  • Right to Access: You have the right to access the personal data we hold about you.
  • Right to Deletion: You have the right to request deletion of your personal data, subject to certain exceptions.
  • Right to Rectification: You have the right to correct inaccurate data.
  • Right to Data Portability: You have the right to receive your data in a structured, commonly used format.
  • Right to Opt-Out: You have the right to opt-out of certain data processing activities.

Security

We implement appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, disclosure, or destruction. However, no method of transmission over the internet is completely secure.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any significant changes by updating the “Last updated” date at the top of this page. Your continued use of ChessDrills after any changes constitutes your acceptance of the updated Privacy Policy.

Contact Us

If you have any questions about this Privacy Policy or our privacy practices, please contact us at:

Email: contact@chessdrills.com