Yearn.finance is an aggregator service for decentralized finance (DeFi) investors using automation to allow them to maximize profits from yield farming.Its goal is to simplify the ever-expanding DeFi space for investors who are not technically minded or who wish to interact in a less committal manner than serious traders.Launched in February 2020 the service formerly known as iEarn has seen huge growth in recent months as new products debuted and developers released in-house token YFI.