Privacy

Account and payments

Google sign-in is optional. When you sign in, Firebase stores your public profile name and photo, your cosmetic entitlements, and your Zummon Plus access period together with the payment reference used to grant it. Signing out stops that data from being read on this device.

Rooms and play

A Device room, including the game on the home page, runs entirely in your browser's memory and sends nothing to a server. A Public room stores a random player ID kept in this browser, the shared board and scores, your display name, and, if you are signed in, your profile photo and Plus expiry. Public rooms are listed for anyone to find and join, and anyone holding the room link can open it. Room data is removed when the last member leaves.

Rank

Finishing a Public room adds a result under your device player ID. Rank publicly shows a display name, an active Plus badge, and win, lose, and draw totals. It does not publish room IDs, boards, or moves. Results are submitted by the player's own browser, so Rank is casual rather than verified.

Advertising

Guests and players without active Zummon Plus access may see one Google AdSense advertisement on the Rank page. Google and its partners may use cookies, IP addresses, or other identifiers to deliver, limit, and measure advertising. Game, room, and shop pages contain no ads.

Your choices

You can play without signing in, and Device rooms need no network connection at all. Active Zummon Plus access removes the Rank advertisement. Clearing this browser's site data removes the stored player ID, which also detaches you from your existing Rank record. Where required, Google presents privacy choices before personalized advertising is used.

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