Nook is a DeFi-powered savings app built on Base that helps users earn high-yield interest by converting funds into USDC and deploying them across optimized crypto lending protocols such as Morpho and Moonwell. The platform offers competitive APYs (~7.6%) with no lockups or withdrawal delays, and ensures security through measures like a bug bounty program and Coinbase integration. Created by former Coinbase team members, Nook aims to simplify access to DeFi savings for mainstream users with intuitive UX and transparent processes.