Rainbow is a fun, simple, and secure way to get started with crypto and explore Ethereum. You can use Rainbow to purchase, manage, and display Ethereum-based assets on mainnet, Optimism, Arbitrum, Polygon, Base, and Zora. Great for newcomers and power users alike, Rainbow allows you to be in total control of your money. Unlike a crypto exchange such as Coinbase, Rainbow doesn't hold your assets on your behalf. You own them directly thanks to the power of cryptography and the Ethereum blockchain