Privacy
This website operates an independent daily estimation game. It does not currently provide accounts, accept payments or collect newsletter subscriptions.
A necessary HttpOnly guest cookie identifies this browser for up to one year. Game sessions, submitted answers, round timing and scores are saved on our server so you can resume your flight. Clearing the cookie removes your browser’s access to that progress; changing devices creates a separate guest.
Your browser may store display preferences and the current session ID locally. Server access logs may contain IP addresses and technical request information; temporary rate limits use request IP addresses. Guest progress is currently retained until operational deletion. No account email or name is requested.
Fonts are hosted locally. Links to data sources and playplain.app open third-party websites governed by their own privacy policies.