Ultimate
Backgammon

CarrTech

Privacy policy

CarrTech uses the data below to provide Ultimate Backgammon.

Local play and training

Local matches, player names, and preferences are saved on the device or browser where you play. The Apple app grades training positions on the device. The browser sends positions and decisions to the Ultimate Backgammon server to run the rules and analysis. Personal training can use your recent online match history to identify recurring mistakes.

Accounts and online play

We store your username, a salted password hash, session records, optional country, online match history, ratings and in-game messages. We use this data to sign you in, run games and show results, reviews and rankings. If you make your profile private, other players can still see your username and games you played together. We record IP addresses and recent sign-in attempts to rate-limit abuse.

If you verify a recovery email, we use it to send recovery codes and security notices. You can delete your account in Profile on Apple or the web. Results already shared with other players may remain under an anonymous placeholder.

Purchases and alerts

Apple processes in-app payments and Stripe processes web payments. We store purchase identifiers and access status to make each pack available on both platforms. CarrTech does not receive your payment card details. If you enable match alerts, we store the device token or browser subscription needed to deliver them. You can turn off alerts from your account settings.

Contact and data requests

Ask a privacy question or request access, correction or deletion of your online data. Include your username if relevant. Keep your account key private.

We use your email and message to respond to your request. We record submission IP addresses to limit abuse and clear expired records when processing new submissions.