What Crato costs
Free plan. No card to sign up, nothing monthly. We take 5% of a sale, and nothing at all when there is no sale.
Pro. $19 a month, or $15 a month paid yearly. We take 0% of your sales.
The two cost the same at about $380 of sales a month. Below that the free plan is cheaper; above it Pro is. That is the whole comparison, and you can switch on your first day, there is nothing to earn first.
Stripe charges separately
Stripe takes its own processing fee on every card payment, which is between you and Stripe and is the same wherever you sell. On small amounts it is the bigger of the two fees.