Cosine: Self Custody Wallet

Your crypto, your rules — now with real-world utility.

Meet the Cosine Wallet, the self-custody crypto wallet redefining how digital assets are used in everyday life. More than just a place to store, send, receive or trade your tokens and NFTs, Cosine Wallet gives you full control over your crypto and the freedom to spend it on what matters.

Key Features:

Multi-chain support: Seamlessly send, receive, and swap tokens across 7+ major blockchains, including Ethereum, Base, Optimism, BNB Chain, Polygon, and more.

Full asset access: Instantly view and manage 9.6M+ tokens and 2.3M NFTs — all auto-discovered, no manual setup required.

Gasless swaps: Swap tokens across networks without worrying about gas fees.

Crypto on-ramp and off-ramp: Seamlessly convert fiat to crypto, or cash out directly to your bank or mobile money.

Virtual cards: Instantly generate virtual cards to spend your crypto online anywhere cards are accepted.

Real-world spending: Pay for flights, mobile top-ups, and other services directly from your wallet.

One phrase, millions of wallets: Access 2M+ child wallets with a single recovery phrase. Perfect for managing multiple identities — without compromising control.

Intuitive UI/UX: Lightning-fast interface designed for both crypto newcomers and power users.

Ready to do more with your crypto?
Download Cosine Wallet and take control — store, trade, spend, and live on-chain, all from one powerful app. Your keys. Your rules. Your world.