Each credit covers one generated flashcard. No subscription, no auto-renew, credits never expire.
Pay with USDT (TRC20) — fast, ~$1 network fee, ~1 minute confirmation. Your license key is emailed automatically once payment confirms. New to crypto? 5-minute guide below ↓
Already a customer? Recover my license · Manage devices
We use crypto so we can launch globally without months of paperwork. It's fast, secure, and easier than it looks.
Sign up at Binance, Bybit or OKX and verify with ID.
Top up $5–$50 with your card or P2P. Pick the Tron / TRC20 network.
On the next page, scan the QR with your wallet — or copy the address and send the exact amount shown.
Confirms in about 1 minute. Your license key arrives automatically.
Yes — and it takes about 5 minutes. The simplest path:
Total fee on your side: about $1 in network costs. Total time: about 5–10 minutes the first time, 1 minute next time.
We're a small independent team based outside the US/EU. Stripe, PayPal, and Paddle don't onboard merchants from our country. Rather than wait years for that to change, we use NOWPayments — a regulated crypto payment processor — so we can start serving you today. Card payments are coming once we register a UK business entity (planned for the next 30–60 days).
USDT on the Tron (TRC20) network — strongly recommended. It's a stable coin pegged 1:1 to the US dollar, fees are about $1, and confirmation is ~1 minute. We pre-select it for you.
Bitcoin works but takes 10–30 minutes to confirm and the dollar value can drift while you're paying. Avoid Ethereum (ERC20) — fees can be $5–$20.
The risks are real but small if you follow the steps:
If the timer expires before you send, the rate-locked invoice cancels and any unsent funds stay in your wallet — you didn't pay anything. If you sent the wrong amount or wrong network and we can detect it, our payment provider will refund automatically (minus blockchain fees). For anything weird, email hi@cardivate.com with your order ID and transaction hash and we'll sort it out manually.
Email hi@cardivate.com with the package you want and your country. We can sometimes arrange a manual bank/Wise/Western Union payment for you — slower but it works. We're working on adding card payments in the next 1–2 months.
One credit per generated card. Most lecture pages produce 3–8 cards depending on the card types you choose. A typical 30-page lecture costs around 100–150 credits.
You're never charged. If our server returns an error, the credits are refunded automatically.
Yes — within 7 days of purchase, as long as no credits have been used. See our refund policy for the full details.
No. They sit on your license forever.
Yes — get in touch via the contact page if you're a study group, faculty, or buying for a class.