I created an account with them and then I could use the VPN with the Bitmask App (https://www.directory.trade-free.org/goods-services/bitmask/). That was it. Because there are no ads and they don’t sell any premium features I consider the creating-an-account a microtrade. However I give a block less because of this. I also installed the Calyx VPN on my phone and except a small popup once which was asking for donations I couldn’t find any trades. I give 4/5 blocks.