Last updated: 15 August 2026
Estimation Mate is a client-side card game scoring tool. Your privacy matters to us. This policy explains what data the app handles and how.
Most game information stays on your device. Estimation Mate also uses Google Analytics for basic usage measurement and offers an optional private game-sharing feature. The information handled by each feature is described below.
The app stores the following data in your browser's local storage:
This locally stored data does not leave your device unless you choose to use Private Game Sharing. You can remove local game data through the app's New Game and saved-game deletion controls or by clearing the app/site data in your browser or Android settings.
If you choose Share Game, the app sends the current game state to Estimation Mate's Cloudflare-hosted sharing service so people with the private viewer link can follow the score. The shared state can include player names, bids, tricks, roles, round history, settings, and scores.
Sharing is optional. Rooms are protected by random private tokens, transmitted over HTTPS, and automatically deleted after 24 hours of inactivity. The host can delete a room sooner by selecting Stop Sharing. Anyone who receives the private viewer link can view that room, so you should only send it to people you trust.
We use Google Analytics to understand general app usage and improve Estimation Mate. Analytics may collect app interactions, page paths, approximate location, browser and device information, and a pseudonymous device or client identifier. We do not send player names, bids, tricks, scores, or private share-room contents to Google Analytics.
Estimation Mate uses Google Analytics for usage measurement, Google Fonts to load the Plus Jakarta Sans font, and Cloudflare to host the website and optional private sharing service. These providers process technical request information under their own privacy terms.
Google Analytics may use a first-party _ga cookie or similar storage to distinguish pseudonymous users and sessions. Estimation Mate also uses browser storage for game data and preferences.
This site may display advertisements provided by Google AdSense or other ad networks in the future. These services may use cookies and similar technologies to serve ads based on your prior visits to this or other websites. You can opt out of personalised advertising by visiting Google Ads Settings.
Estimation Mate is intended for users aged 18 and over and is not directed at children. We do not knowingly collect personal information from children.
Network connections use HTTPS. Private sharing data is retained for up to 24 hours after the most recent host update and is then automatically deleted. Google Analytics retains analytics information according to the retention controls configured for the service.
We may update this policy from time to time. Changes will be posted on this page with an updated date.