A single one-time unlock for this browser. No subscription, no account.
$9
one-time · lifetime unlock
✓Unlimited Signal Checks (free tier: 5 / day)
✓Academy Certificate of Completion & Mastery
✓3-qubit Playground + GHZ presets
✓Priority support & future quantum tools
Secure checkout by Stripe. Test mode until launch — no real charge.
Free tier stays fully usable; safety & literacy are never hard-paywalled.
← Maybe later