Buy Bitcoin

Strike operates as a fully custodial service with a clear commitment to backing all user funds. The company explicitly states that all cash and Bitcoin held in custody are maintained 1:1 for each user, meaning no fractional reserves or rehypothecation of customer assets. This segregated custody model ensures your funds are always available when you need them.

Strike is a regulated U.S. financial technology company headquartered in Chicago, operating under money-transmitter and virtual-currency compliance frameworks. The company has raised $80 million in funding from institutional investors including Washington University in St. Louis, University of Wyoming, Valor Capital Group, and Ten31, demonstrating significant backing from established financial and academic institutions. Strike has built a reputation in the Bitcoin community for promoting real-world Bitcoin and Lightning Network adoption, including participation in projects like El Salvador's Bitcoin integration.

Full reserve custody with no lending—ever. SOC 1 & SOC 2 certified. Verifiable Proof of Reserves launched September 2024. Over $800M in Bitcoin secured.

Cash App is operated by Block, Inc., a publicly traded company (NYSE: SQ) subject to U.S. financial regulations including AML/KYC requirements and periodic compliance audits. USD balances held with a Cash App Card or Sponsored Account are eligible for FDIC pass-through insurance up to $250,000 per customer through partner banks.

The app employs strong security measures including encryption, PIN protection, biometric authentication, and the ability to remotely disable your card if your phone is lost. AI and machine learning fraud detection systems monitor transactions in real time across core payment flows.

For Bitcoin, Cash App uses industry-standard security practices, though the custody model is not publicly detailed. Users can withdraw Bitcoin to external wallets or hardware devices for self-custody of larger holdings.

NASDAQ: FLD (listed February 2025). ~1,500 BTC corporate treasury. $83M+ in Bitcoin rewards distributed. $3.1B+ transactions processed. Zero-fee bitcoin purchases.

2-of-3 multisig: you hold 2 keys, they hold 1. They cannot move your bitcoin without you. 100,000+ BTC secured across network. $500M+ loans originated with zero dollar losses. Key agent network includes Coincover, Bakkt, Kingdom Trust.

Non-custodial 2-of-2 multisig escrow. Swiss company (Zurich). No KYC for trades under CHF 1,000/day. Verifiable source code (MIT-CC license). End-to-end encrypted chat. Lightning and on-chain support.

Operating since 2013. Bitcoin-only, self-funded, no VC backing. Never holds customer bitcoin—direct to your wallet. PSAN registered in Europe. New platform launched April 2025 with rebuilt infrastructure.

Founded 2016. Pioneered non-custodial P2P trading and lending. 2-of-3 multisig escrow. No fiat gatekeepers. Escrow extraction tool for emergency recovery. Based in Latvia.

2-of-3 multisig vault with keys held by 3 separate institutions (Onramp, BitGo, Coincover). No single entity can move funds. On-chain auditable. Full-reserve model.

No account required. No app required. Vouchers redeem directly to your own wallet. Available worldwide at retail locations and online stores.