Braingammon privacy policy

Last updated: 9 November 2026

Braingammon is a backgammon game for iPhone, Android and the web, made by Computer Vision and Algorithms Ltd. ("we"). You can play it without an account: games against the computer and between two people on one device stay on your device. This policy explains what data the game keeps, why, who else receives it, how long it is kept and how to delete it.

Playing offline

Your name, picture, language, settings, local rating, badges and high scores are kept on your device. Without an online account they are never sent to us.

Your online account

The first time you choose Play online (or look at the global ratings or the world high scores, or set a new high score in Beat the AI), our game server makes an online account for your device. It keeps:

• the name and the picture (one of the game's drawings) of your profile, and your language;
• your global rating and how many games you won, lost and drew;
• your local rating (against the computer players) and whether you are a pro user;
• the online games you played: the dice, the moves, the result and the rating changes;
• your new personal high scores in Beat the AI, with the moves of those games (the server plays them again to check them), for the world high scores;
• a sign-in key kept on your device, so that you do not have to type anything; and, if you created an account with a password, a scrambled form of it (never the password itself);
• when the account was made and last used.

We use this only to run the game: to sign you in, find opponents, keep ratings and show the world high scores. Other players see your name, picture and global rating during a game, and your name, picture and result in the world high scores.

While you are connected, the server also sees your network (IP) address. Its record of connections (its log) keeps it, to keep the server running and to stop abuse.

Advertising

In the iPhone and Android apps, a player who is not a pro user may see an advertisement after a match. The advertisements are shown by Google AdMob. They are non-personalized: they are not chosen from your interests or from your activity in other apps, and the app does not ask to track you. To show them and to count and protect them against fraud, Google's software in the app collects data such as your device's identifiers, your IP address (and the general area it shows), the device and app version, and how you interact with the advertisement. Google handles that data under its own policy: how Google uses information from apps that use its services. Pro users see no advertisements. The web version shows none.

Purchases and ratings

If you buy the pro version, the purchase is made through Apple's App Store or Google Play under their terms. We never see your payment details; we only learn that your device has the pro version. When the app asks you to rate it, the rating window is Apple's or Google's own.

Who else receives data

• The hosting company that runs our server stores it for us and may not use it for anything else.
• Google, for the advertisements described above.
• Apple or Google, for purchases made through their stores.

We do not sell your data, use it for advertising profiles, or give it to anyone else, unless the law requires it.

What we do not collect

• No email address, phone number, precise location, contacts or real name.
• No analytics or tracking of you across other apps and websites.

How long data is kept

• Your online account: until you delete it.
• The games and world high scores of a deleted account: kept without your name or picture, so that the other players' games, ratings and high score lists stay correct. They can no longer be linked to you.
• The server's log with network addresses: at most 30 days.

Security

The app talks to the server only over encrypted connections (HTTPS and secure WebSockets). Access to the server is limited to us.

Deleting your account and data

In the game, open your profile and press the waste bin (Delete online account). At once and for good, the server deletes your name, picture, language, ratings, pro status and sign-in key; your games and world high scores stay only without your name or picture (see above). Deleting the app removes everything kept on your device.

You can also ask us to delete your account without the app: email shai4998@computervisionalg.com with your player name. We may ask you to show that the account is yours, and we delete it within 30 days.

Your rights

You may ask us what data we keep about you, ask us to correct it or delete it, or object to how we use it, by writing to the address below. We answer within 30 days. If you live in the European Union or the United Kingdom, you may also complain to your data protection authority. We keep account data because it is needed to provide the online game you asked for, and the log because we have a legitimate interest in keeping the server safe.

Children

The game itself suits all ages, but its online play and advertisements are not directed at children under 13. We do not knowingly keep an online account of a child under 13; if we learn of one, we delete it. A parent can ask us to delete a child's account at the address below.

Changes to this policy

If we change this policy, we update it here and change the date at the top. If a change is important, the game will tell you.

Contact

Questions about this policy or your data: shai4998@computervisionalg.com