Offer valid thru 12/31/26 for eligible Cash App customers 18+ in the US excl. NY who purchase bitcoin on Cash App originating from the Bitkey app. On-chain network transfer fees and limits may apply. Must have a Bitkey wallet. C​ash App ​bitcoin services by Block, Inc. of Delaware, licensed by the NYDFS to engage in virtual currency business activity. Bitcoin is a non-deposit, non-bank product that is not FDIC insured and involves risk, including monetary loss. See our site: https://bitkey.world/blog/cash-zero-fees

This is about as cheap as buying bitcoin gets. Pick in Bitkey and you'll pay zero trading fees and zero spread, so more of your money turns into sats.