Privacy

• The facts check runs in your browser. We don't ask for your child's name, age, school or any other personal details. Answers aren't sent to us while the check runs.
• Results are kept only in your browser tab's session storage, so they're still there if you go to checkout and come back. They're cleared when you close the tab.
• If you buy the plan, the list of missed and slow facts (for example "7 × 8") is attached to your Stripe order so your plan can be built. Nothing else about your child is sent.
• Other checks on this site work the same way. If you buy a plan from one of them, only the list of skills to practice is attached to your Stripe order.
• Stripe handles payment and collects the email and card details it needs for the payment and receipt. We never see your card number. See Stripe's privacy policy.
• No ad trackers, no tracking cookies and no selling of data. Our hosting provider keeps standard server logs.
• Questions or deletion requests: hello@mathlounge.app.

MathLounge Team · Last updated October 29, 2026