Can I exchange cryptocurrencies with each other?

Within Airtm, cryptocurrencies are exchanged only between USDC. For example, if you would like to exchange BTC for ETH, you must first sell the BTC for USDC, and then buy ETH with your USDC. To do this you must enter the "Crypto" section, select the "Sell" option to exchange BTC to AirUSD and then in the same "Crypto" section, select the "Buy" option to exchange USDC to ETH.