PRIVACY

Playful, not nosy.

CINCO saves what it needs to keep your game working and measures aggregate play so the experience can improve.

Last updated: August 3, 2026.

Game data on your device

CINCO uses your browser's local storage to remember today's progress, completed results, play count, streaks, first-game guidance, and anonymous analytics identifiers. This data stays associated with that browser and can be removed by clearing the site's browser data.

Firebase Analytics

CINCO uses Google Firebase Analytics to understand product activity such as starting a game, completing a round, finishing all five rounds, opening instructions, and sharing a result. Firebase may automatically collect standard device, platform, and traffic information under Google's terms.

Playtest sessions

CINCO stores a compact, pseudonymous daily session in Cloud Firestore. It can include aggregate round scores, optimal scores, timing, input method, completion status, and whether a result was shared. This helps identify difficult rounds and places where players leave.

What CINCO's custom analytics does not store

It does not store your name, email address, account login, contact information, selected cell IDs, complete paths, board values, or free-form personal input. CINCO does not require an account.

External links

Links to Charlie's website and Whirlie include campaign parameters so referral visits from CINCO can be counted. Those destinations have their own privacy practices.

Questions

For privacy questions, contact Charlie through imcharlie.co.