Buying with fiat: if you're starting from cash rather than existing crypto, fiat-to-crypto purchases on SimpleSwap are handled through third-party payment providers. Those providers may run their own KYC checks as part of completing the purchase — this is separate from the crypto-to-crypto swap flow above.
Creating an account: entirely optional for most swaps, but it unlocks the SimpleSwap Loyalty Program and other account features. SimpleSwap may also request additional verification directly in defined compliance scenarios, regardless of whether a third-party payment provider is involved.