It will sound very stupid and funny, but I used to write down all my transactions in a notebook and calculated profit there. It seems to me that I was the oldest fashioned trader :)I tried using Evernote, but I really dislike its interface. In addition, the application often crashes. Do only I have such problem? In the end, I started looking for other alternatives because it was very inconvenient to keep statistics. After a long search, I found the great tool to use when determining leverage and an online notebook to record all transactions. It was very convenient and now I could concentrate on trading immediately.