Cookie policy
Last updated: 28 September 2026
Gummano sets no cookies of its own. It uses the browser's local storage so the game works, and Google ads may use cookies with your consent.
Our own storage (technical, no consent required)
| Name | Purpose | Duration |
|---|---|---|
hs-device | Random identifier of this browser; used for the leaderboard and to let you delete your data. | Until you delete it |
hs-subject | Your choice about donating your hand geometry and, if given, age and sex. | Until you delete it |
hs-profile | Nickname, avatar and image mode in rooms. | Until you delete it |
hs-room, hs-duels, hs-party | Ongoing rooms, challenges and table games, so you can resume them. | Until they end or you delete it |
hs-theme, hs-ios-cam | The chosen colour and whether you already saw the iPhone camera tip. | Until you delete it |
gummano-bichos-1, gummano-memoria-1, gummano-torre-1, gummano-paleta-1, gummano-giros-1, gummano-mareas-1, gummano-tips-calib-1 (and the older gummano-calib-1, gummano-bichos-calib-4) | Bugs, Memory, Tower, Palette, Twists and Tides records and preferences, and the fingertip calibration that Bugs, Memory, Palette, Twists and Tides use (distance thresholds computed from your hand, no images). | Until you delete it |
| Local database (IndexedDB) | Your game history (scores and hand geometry, no photos), for “Records”. Never leaves the phone. | Until you delete it |
| Application cache | The hand detector and its model (~11 MB) so later games load instantly. | Until the browser clears it |
All of this is removed from Settings → “Delete my games from this phone” or by clearing the site data in your browser.
Analytics
We use Cloudflare Web Analytics, which uses no cookies or persistent identifiers and does not track across sites.
Advertising (third parties, with your consent)
Ads are served by Google AdSense. In the European Economic Area, the United Kingdom and Switzerland you will see a consent notice before any advertising cookie is used; if you refuse, non-personalised ads are shown with cookies limited to measurement and fraud prevention. Usual Google cookies:
| Cookie | Domain | Purpose | Duration |
|---|---|---|---|
__gads, __gpi, __eoi | gummano.app | Serving and measuring ads, frequency capping. | 13 months |
IDE | doubleclick.net | Personalised ads and measurement. | 13 months |
test_cookie | doubleclick.net | Check whether the browser accepts cookies. | 15 minutes |
FCCDCF, FCNEC | gummano.app | Store your consent choice. | 13 months |
More: how Google uses cookies and how Google uses information from sites that use its services.
How to change your choice
The “Ad privacy” link at the bottom of the site reopens the consent notice. You can also block or delete cookies in your browser settings (Safari: Settings → Safari → Privacy; Chrome: Settings → Privacy and security → Cookies).