Privacy Policy

What data do we process?

We may process login, password hash, session token, plan status, game history, PGN, puzzle results, basic technical logs, IP address, and user agent.

Why is the data used?

Data is used to operate accounts, save games, provide chess analysis, prevent abuse, rate-limit requests, and keep the app stable.

External services

After the relevant consent, the app may use Google Analytics and Meta Pixel and Conversions API to measure Facebook and Instagram ads. Stripe handles payments. Full payment card data is not stored by the app.

Meta may receive app usage events, the page URL, browser identifiers, IP address, user-agent, and a hashed account identifier or email. Marketing consent is separate from analytics consent.

Cookies and consent

Google Analytics is controlled by analytics consent. Meta Pixel and Conversions API events run only after separate marketing consent.

Consent is stored locally in the browser and can be changed at any time.

User rights

Users may request access, correction, account deletion, processing restriction, or data export where applicable law allows it.