🔐 Data Protection & Privacy

Math Battle Arena (“we”, “us”, “our”) is the controller of personal data collected through this Service. We are committed to protecting your personal data in accordance with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018.

We use your personal data to:

• Provide, maintain, and improve the Service.
• Authenticate you and keep your session secure.
• Display leaderboard rankings and battle results.
• Detect and prevent cheating or abuse.
• Respond to support requests.

We process your personal data based on:

• Contract — processing necessary to provide the Service you signed up for.
• Legitimate interests — fraud prevention, security, and service improvement.
• Legal obligation — where required by applicable law.

Your data is stored securely on Supabase infrastructure hosted in the European Union. Supabase implements industry-standard security measures including encryption in transit (TLS) and at rest. We do not store payment card details.

We do not sell, rent, or trade your personal data. We may share data with:

• Supabase — our hosting and database provider, acting as a data processor.
• Legal authorities — where required by law or court order.

We retain your account data for as long as your account is active. Game history records are retained for 12 months. You may request deletion of your account and associated data at any time.

Under UK GDPR you have the right to:

• Access — request a copy of the personal data we hold about you.
• Rectification — ask us to correct inaccurate data.
• Erasure — ask us to delete your personal data (“right to be forgotten”).
• Restriction — ask us to limit how we use your data.
• Portability — receive your data in a structured, machine-readable format.
• Objection — object to processing based on legitimate interests.

To exercise any of these rights, contact us at privacy@mathbattlearena.com. We will respond within 30 days.

For information on how we use cookies, see our Cookies Policy.

We may update this Data Protection policy from time to time. Any material changes will be communicated via a notice on the Service. Continued use after changes constitutes acceptance.

If you believe we have not handled your data correctly, you have the right to lodge a complaint with the UK Information Commissioner's Office (ICO) at ico.org.uk.