Privacy
Last updated October 23, 2026
The short version
ArithmeticPro is a free puzzle game. There are no accounts, no ads, no third-party analytics and no tracking cookies.
What stays on your device
The game uses your browser’s localStorage (not cookies) to remember your settings, light/dark theme and best times. It never leaves your device, and you can clear it at any time through your browser’s site-data settings.
Server logs
Like most websites, our web server keeps standard access logs: your IP address, the time, the page requested (without query strings), the referring page and your browser’s user agent. We use them only to count visits with a self-hosted report (GoAccess), for security and to fix problems. They aren’t shared or sold, and they’re deleted automatically after about two weeks.
Donations
If you choose to support the game, the payment is handled entirely by Stripe. We never see your card details. Stripe’s handling of your information is covered by the Stripe Privacy Policy.
Sharing
The “Post on X”, “Text” and “Share” buttons only open X, your messaging app or your device’s share sheet with a pre-filled message. Nothing is sent unless you send it.
Contact
Questions? Email arithmeticpro@mail.grokbot.com.