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Top-up

Prompt2CAD is pay-as-you-go. No subscription, no recurring charge, no auto-renewal. You top up when the balance is low; credits never expire.

How to top up

  1. Click the credit chip in the header, or click any gated export and accept the paywall dialog's offer, or ask the agent to top up.
  2. The flow redirects you to Stripe Checkout in a new tab.
  3. Pick the amount (the minimum is $10), enter card / Apple Pay / Google Pay details.
  4. Stripe handles the payment; on success it redirects back to /app?checkout=success and the credits land within seconds.

If you cancel out of Stripe Checkout, you land at /app?checkout=cancelled and nothing happens. No partial charge, no half-state. Try again whenever.

Conversion rate

1 cent = 1 credit. So:

You pay (USD)You get (credits)Approx. generationsApprox. iterations
$10 (minimum)1,000~33~66
$252,500~83~166
$505,000~166~333
$10010,000~333~666

The Stripe product description lists both numbers: "~33 new designs · or ~66 refinements on existing models."

Currency

Charges are processed in USD through Stripe. Your card statement will show a USD line-item; if your card is denominated in another currency, your bank applies its own exchange rate (and sometimes a foreign-transaction markup). That markup is your bank's, not Prompt2CAD's.

Stripe also adds automatic tax based on your billing address.

Payment methods

Whatever Stripe Checkout offers in your region:

  • Cards: Visa, Mastercard, Amex, JCB, Discover.
  • Wallets: Apple Pay, Google Pay, Link.
  • Bank: SEPA Direct Debit (EU), ACH (US).
  • Regional: iDEAL (NL), Bancontact (BE), giropay (DE), Klarna where available.

Prompt2CAD doesn't see your card details — Stripe handles the entire payment surface.

What top-up unlocks

The first time you top up, two things happen:

  1. Credits land on your balance. Immediately.
  2. The export paywall opens. Permanently, for the lifetime of your account. STEP, DXF, GLB, DAE, OBJ, STL exports become free actions for you from then on.

The gate is one-way. There's no "subscription lapsed" state. If your credits run out later, you only have to re-top-up to keep using the app — exports remain unlocked.

Multiple users on one account

Top-up is per account, not per user. If you share a Google account with a colleague, you share the balance and you share the export gate. If you want separate balances, use separate Google accounts.

Receipts and invoices

Stripe sends a receipt to your email on each charge. For a VAT invoice (EU business buyers), reply to the receipt asking for one — Stripe can issue one automatically once you provide your VAT ID. You can also retrieve receipts later from the link in the original email.

Promo / referral codes

Prompt2CAD does not currently issue promo codes through the in-app flow. If you've been given one out-of-band (e.g. comped credits as part of a partnership), it's applied directly to your balance, not through Stripe — you would see the credits appear without a Stripe receipt.

Failed payments

Stripe declines a card for many reasons (insufficient funds, geo-restriction, 3DS challenge timeout). The Checkout page shows the decline reason. Try again, try a different card, or email support if the issue persists.

Next: Refunds.

Docs for Prompt2CAD — derived from the source code at the commit that built them.