Privacy Policy

Effective September 22, 2026 · Mahjongji, by Sunday Tech Ventures, Mumbai

What we collect

• Account: an anonymous account is created to save purchases and tables. If you choose email sign-in, we also use your email address to sign you in.
• Profile: display name, city and neighbourhood. These are stored on your device; your display name, city and neighbourhood may sync to your anonymous account when you connect.
• Learning: lesson completion and per-variant practice ratings, stored on your device.
• Community: tables you host or join, membership requests, and reports or blocks you make.

What we never collect

• Precise location. We use the neighbourhood you type, never GPS.
• Your contacts. We never read or upload your address book.
• Other players' exact addresses. A private address entered by a host stays out of table discovery; hosts arrange details directly with players.
• Advertising identifiers. There are no ads and no third-party ad tracking.

How we use data

To run learning, table discovery, reports and blocks, and to manage your subscription. We do not sell personal data. We do not use your data for advertising.

Subscriptions

Billing is handled by Apple or Google. We never see your card details. We store subscription transaction identifiers and entitlement status to unlock membership.

Your controls

You can delete your account in the app (Account > Delete my account), which removes your profile, ratings, tables and memberships. Local profile and lesson data on this device are also removed. You can report or block a host from the table listing.

Contact

sundaytechventures@gmail.com