Privacy and your data
Last updated: 11 October 2026
This notice covers the peyfu.com website, its two mini games and their shared leaderboards.
Play without an account
Our mini games do not ask for an account, name or email address. Each game gets a random nickname such as Ninja-123456. We do not run advertising or behavioral analytics scripts on the site.
Shared leaderboards
Pressing Start begins a ranked game. Card and answer choices are sent to our server to calculate your score. Completed games store the nickname, game, score, time, moves or correct-answer count and creation time. Nicknames, scores and times are displayed publicly. Rankings compare results from the last 90 days; older records are deleted when a new score is saved. Abandoned games are not ranked.
Temporary game data and language
Active sessions are valid for up to 20 minutes and held temporarily in server memory. Language is chosen through page addresses. These features use no cookies or localStorage. Refreshing the page or closing a game ends the current round.
Connections and security
Our server and network services such as Cloudflare may process technical information including IP addresses, connection times and browser information to deliver content, limit abuse and protect the service. IP addresses are not stored in the score database. Connection information may be held briefly in memory for request limits.
Other games and contact
Math Arena is a separate online game and Math Runner is an Android app. Their data use may differ from these mini games. Contact links open your email application. Information you send is used to respond to your request.
Questions and removal requests
Send privacy questions or score removal requests to hello@peyfu.com. Include the nickname, game and approximate time so we can find the entry. We will update this notice as features change.