Bitfinex is described as 'Offers the most liquid exchange in the world, allowing users to easily exchange USD/BTC, USD/LTC, and LTC/BTC with minimal slippage. We also boast a suite of order types to help traders take advantage of every situation' and is a cryptocurrency exchange in the bitcoin & cryptocurrency category. There are more than 50 alternatives to Bitfinex, not only websites but also apps for a variety of platforms, including iPhone, Android, iPad and Mac apps. The best Bitfinex alternative is Bisq, which is both free and Open Source. Other great sites and apps similar to Bitfinex are Coinbase, Binance, Robinhood and Blockchain Wallet.