Privacy policy

Last updated 2026-11-08.

What we store

• Your progress (levels finished and stars) is saved only in your own browser. We never see it.
• If you make an account, we store your email address and whether you've bought the course. Log-ins are handled by Google Firebase Authentication. Your account details are stored on Cloudflare.
• Payments are handled by Gumroad. We receive your email address and the details of the sale, never your card details.

What we don't do

• We don't show ads, and we don't sell your data.
• The free module needs no account and no personal information.

Your choices

To delete your account and its data, email faisal5455@gmail.com from the address you signed up with.