Tether (USDT) is a cryptocurrency designed to maintain the value of 1 United States dollar. This makes Tether a stablecoin enabling smooth and global crypto trading. Tether is a widely popular currency. According to estimations, over half of all BTC trading happened through USDT in 2021. With the help of Tether, investors can fight the high crypto volatility and trade at a low cost. But what makes this currency differ from other most-traded currencies out there?