UNISWAP is a decentralized exchange (DEX), which first introduced the automated market business (AMM) model in the market. Through this innovation, traders can use a constant liquidity pool and use a constant product formula for transactions. In the V3 version, the exchange expands to a blockchain outside Ethereum for the first time. The V3 version is also launched on Polygon for the first time. Thanks to its lower GAS costs, users can now get a more affordable trading experience.