Privacy Policy

Last updated: 4 June 2026

World Cup Predictor ("the Service") is a skill-based prediction game. This policy explains what we collect and why. We collect as little as possible.

What we collect

Wallet address. Your public Solana address is your account identifier. We never request or store private keys or seed phrases.
Sign-in signature. A one-time message signature is used only to prove you control the wallet. It is gasless and cannot move funds.
Game data. Your predictions, scores, and chosen display handle.
Session cookie. An encrypted, HTTP-only cookie keeps you signed in. No third-party tracking cookies are set.

What we do not collect

No names, emails, phone numbers, or private keys. We do not sell data or run advertising trackers. On-chain token balances are read from public RPC endpoints only to verify access eligibility.

How we use it

Solely to run the game: authenticate your wallet, record predictions, compute scores, and display public leaderboards and profiles (shown by wallet/handle).

Your choices

You can stop using the Service at any time. To request deletion of your game data associated with a wallet, contact us via the project repository.

Changes

We may update this policy; material changes will be reflected by the date above.