Bitcoin and crypto exchanges — CEX, P2P, and Bitcoin-only platforms.

https://river.com
Bitcoin-only financial institution. Recurring buys, instant withdrawals to self-custody, and zero-fee DCA plans.

https://cash.app
Popular mobile payment app with Bitcoin buying and Lightning withdrawals. Simple way to stack sats with automatic purchases.

https://gemini.com
Regulated US exchange founded by the Winklevoss twins. Focused on compliance, security, and institutional-grade custody.

https://robinhood.com
Commission-free trading app offering crypto alongside stocks and ETFs. Simple mobile-first interface with Bitcoin withdrawals.

https://coinbase.com
Largest US cryptocurrency exchange, publicly traded on NASDAQ. Regulated platform with custody, staking, and institutional services.

https://kraken.com
US-based cryptocurrency exchange known for security and regulatory compliance. Spot, futures, staking, and institutional services.