Privacy Policy

Last updated: July 2026

This policy explains what we collect, why, and who we share it with when you use howtostudychess (the “Service”).

What we collect

Account data: your email address and the profile details you set (display name, rating, linked chess accounts).
Gameplay data: games you play or import, moves, analysis, drills, and progress — the core of the coaching product.
Usage data: basic logs needed to operate and secure the Service.
Payment data: handled by our payment processors. We receive subscription status and identifiers, but not your full card number.

To provide and personalize coaching, maintain your account and subscription, keep the Service secure, and communicate with you about your account.

Supabase — authentication and database.
Stripe and Razorpay — payment processing.
Anthropic — powers coaching explanations (position/game context is sent to generate lessons).
ElevenLabs — premium coach voice (Pro).
Vercel — application hosting.

We do not sell your personal data.

We use essential cookies to keep you signed in and to remember your region/currency preference. We don’t use them for third-party advertising.

We keep your data while your account is active. You can request deletion of your account and associated data via our Contact page.

Depending on where you live, you may have rights to access, correct, export, or delete your personal data. Contact us to exercise them.

We use industry-standard measures to protect your data, but no method of transmission or storage is completely secure.

The Service is not directed to children under 13 (or the minimum age in your country).

We may update this policy; material changes will be posted here with a new date.

Privacy questions? See our Contact page.