Deck checks, search and card data are free for everyone. Pro is for the card suggestions picked by Claude Opus, which cost us per call.
Pay as you go: a credit covers one card suggestion past your plan's daily or monthly limit. Credits don't expire.
Payments are handled by Lemon Squeezy, our merchant of record, which charges any applicable tax and handles refunds. Prices are in US dollars. See the Terms for Pro and credits.