Privacy
August 15, 2026
The short version: your study progress never leaves your browser, and there are no accounts to hold your data in the first place.
What stays on your device
Your answers, scores, streak, XP, flashcard schedule and readiness estimate are stored in your browser's local storage. They are not sent anywhere and no one here can see them.
Clearing your browser data erases them permanently. There is no server-side copy to restore from.
Cookies
One cookie is set, and only after you buy a pass: it holds the signed token that proves you paid, and it expires when your pass does. There is no advertising cookie and no third-party tracker.
Analytics
Aggregate page-view and page-speed data is collected through Vercel Analytics and Speed Insights, which are cookieless and do not build a profile of you or follow you across other sites.
Payments
Payments are processed by Stripe. Your card details go to Stripe directly and are never seen or stored here. Stripe supplies an email address and whether the payment succeeded, which is what makes support and the pass guarantee possible.
Who else is involved
The site is hosted by Vercel, which processes standard server request logs. Stripe processes payments. That is the complete list — no data is sold, and nothing is shared with anyone else.
Contact
A contact address is published on the site before any purchase is possible.