Privacy policy.

Data used for online play.

The game uses a randomly generated player identifier to keep a daily attempt and its game session. Online sessions store the date, mode, generated display name, question snapshot, chosen answers, scores and timing information. Daily leaderboards show generated names and totals.

A browser cookie named rare_player stores your anonymous player identifier for up to one year. In the mobile app, the native networking cookie store maintains the corresponding session. The WeChat game retains this anonymous cookie in device-local storage. The game does not ask you to create a player account or provide a WeChat profile or OpenID.

Data stored on your device.

Local storage keeps saved session IDs, completed daily flight history and offline practice history. Offline practice questions and scoring work on your device. Supported web browsers and mobile apps open your operating system’s share sheet. Web sharing also offers a clipboard fallback. WeChat sharing uses WeChat’s share controls. You choose whether and where to share a score.

Sound is optional. Haptics use the phone’s vibration hardware where supported. These features do not require microphone, camera, contacts or location access.

Hosting and service logs.

Cloudflare Workers and D1 host the online game and gameplay database. Cloudflare processes network requests and may process IP addresses, request details and service logs to operate and protect the service. The game enables Worker observability for diagnosing service failures.

The project currently includes no advertising SDK, analytics tracker or cross-app advertising identifier. Gameplay answers and anonymous records are used to operate scoring, session recovery and leaderboards.

Retention and your choices.

Local browser data remains until you clear it. You can remove local history by clearing site data or removing the mobile app. Online gameplay records remain in the service database while the service operates, unless removed by the operator.

For a data request, contact the maintainer through the support page. Include the saved game ID if you can provide it privately. Publish only non-sensitive details in public GitHub issues.

Updates and contact.

This policy may change as game features change. The effective date identifies the current revision. Use the support page for privacy questions or data requests.