UNIHelper is a Chrome extension developed by ron.suhodrev that aims to enhance the browsing experience of Uniswap, a decentralized exchange platform. By adding a new "Min. APR" column, UNIHelper makes it easier for users to identify the most profitable pools on Uniswap.

The extension utilizes a rough approximation formula to calculate the minimum APR based on the data available in the table for the last seven days. It takes into account factors such as weekly volume, fees, and total value locked (TVL). However, it's important to note that the actual APR may vary due to various factors, including the price range chosen, changes in volume and TVL, and the amount of money staked relative to the TVL.