Rainbow offers a mobile and desktop application supporting Ethereum-based cryptocurrency wallets. Its services include creating and connecting cryptocurrency wallets, storing and transferring supported cryptocurrencies, tracking portfolios, and accessing decentralized applications (DApps). Rainbow Wallet is non-custodial, meaning users control their cryptocurrencies and private keys. It supports all ERC-20 tokens and enables transactions with third parties. Additionally, Rainbow provides links to third-party processors for fiat cryptocurrency purchases.