Privacy policy
The duck contract
The summary in three quacks. The full text is right below.
- No account, no email, no real name: you stay an anonymous duck.
- Online, we keep a random ID, your duck name and your results. That's it.
- Google ads, and no in-app purchases: everything is bought with in-game coins.
Signed: the duck
Updated: 10 November 2026
In short
Coin Coin Slash is played without an account. We never ask for your name, email or phone number, and we do not sell any data.
On your phone
Your progress (coins, Starcoins, record, equipment, cosmetics, upgrades, spells, challenges, achievements, Bestiary, settings, recorded quacks, best run used as your ghost) is stored on your device. The microphone (optional) is analysed on the phone to detect a breath, and Quack Custom Studio records your quacks on the phone: the mic sends no sound to our server. If you choose “Export a file”, that file contains your progress and your quacks, and you decide who to share it with.
Online play (Duck vs Fox, Drawbridge Brawl, Princesses' Tea Party, code rooms, transfer codes)
The first time you play online, the game creates a random ID. Our server (Cloudflare) stores: that ID and the hash of a secret key, your platform (iOS or Android), the dates you were created and last seen, your duck name (two words picked from lists, never free text, plus a 4-digit number), the equipment and cosmetics you wear, your online matches (opponents, reported scores, result, rating change), your season rating with your wins, losses and draws, and the last time you searched for a match, to count the ducks present. For ranked races against ghosts, it also stores your score, medals, season points and the path of your race, used as a ghost for other ducks. We never ask for a real identity. Your duck name, outfit and results are visible to other players. A transfer code holds a copy of your progress, your best run and, if there is room, your recorded quacks; it is deleted as soon as it is used, otherwise at the daily clean-up after its 24 hours of validity.
Live games
During a live game (code room, ranked match, tea party for two), your duck's position and state are relayed to the other players in the room, without being stored. A room is deleted 10 minutes after the last duck leaves. On “Local Wi-Fi”, this stays between your phones and never goes through our server. There is no chat between players, only the fox's ready-made taunts (a laugh, a stuck-out tongue).
IP address
To prevent abuse (creating IDs, trying transfer codes), the server counts requests using a salted, truncated hash of the IP address that changes every hour. These counters expire after two hours and are deleted at the daily clean-up. The address itself is never stored.
Ads
The game shows ads from Google AdMob: rewarded videos you choose to watch (Revive, double your coins, reroll the cards) and, now and then, an ad when you leave the end screen. Google may use device identifiers to show and measure ads, according to your choice at first launch (GDPR consent in Europe, Apple's tracking permission). You can change your mind in your phone's settings. Google's policy: https://policies.google.com/privacy
Purchases
Coin Coin Slash has no in-app purchases: equipment, cosmetics and outfits are bought with the coins you earn by playing. We never receive any payment information.
Retention
Online matches and ranked races: 60 days. Ranked race ghosts: current and previous season. Waiting room presence: 24 hours. Online rooms: 10 minutes after the last duck leaves. Anti-abuse counters: two hours, then deleted at the daily clean-up. Transfer codes: deleted once used, or at the daily clean-up after their 24 hours of validity. ID, duck name, outfit, ratings, medals and season points: until you ask us to delete them.
Children
The game asks for no personal data. Ads for younger players follow Google's appropriate settings.
Your rights
You can ask for access to your online data or for its deletion by writing to us with your duck name and its number (shown on the leaderboard): we will delete the ID and everything linked to it.