Get in touch

Yes. Every lesson, simulator, formula, and glossary entry ships with the app bundle. The only network use is the bundled privacy plugin's first-launch attribution call. After install, you can run the entire app without any connection.

No. Lesson progress, saved Sandbox experiments, and preferences are stored locally on your device. There is nothing to sign up for.

No — and we go to some lengths to make that clear. The app teaches probability with examples drawn from games of chance the way a textbook does. There is no wagering, no betting tools, no virtual currency. Lessons that touch on house edge are framed cautionarily.

Planned. The design system is platform-agnostic and the codebase is Flutter, so the path is clear — we'll announce a target date once the Android v1 has been in the wild long enough to gather feedback.

Use the form on the right with subject "Lesson feedback". Please include the lesson number, the exact wording you'd like us to look at, and (if relevant) what you think the correct version is. We take corrections seriously and aim to ship a fix in the next release.

Yes. Email [email protected] with the subject "Data Deletion Request" and we'll process it within 30 days. You can also reset your Google Advertising ID through your device's privacy settings to break the link to attribution data.