Trigonify

Privacy

Trigonify is a study tool, not a data business. The reference is free to read and needs no account. Here is exactly what is and isn't collected.

Your study data stays in your browser

Your quiz history, progress, and preferences are stored only in this browser's localStorage. They never leave your device, and there is no server sync or account. Clearing your browser storage erases them.

Analytics

If analytics are enabled in production, Trigonify uses Cloudflare Web Analytics, which is cookieless and aggregate. It records page-level traffic trends only - no cross-site tracking, no advertising identifiers, and nothing tied to an individual.

Payments

Premium purchases are processed by RevenueCat and Stripe. Your email and payment details are handled entirely by them - Trigonify never sees your card number. To recognise your Premium on this device, an anonymous purchase id is stored in this browser; it is the same code you can copy from the Premium page to restore access elsewhere.

Support & contact

Questions, or lost your access code? Email [email protected] from the email address on your receipt and we can look it up.