I used IB years ago but it has been some time so now that I have opened a new account, I would like to get it set up correctly. In the past I think I used Ninja Trader, button trader and I think that's it. So first, what percentage of people use just IB to trade and no other skin? Is it a good idea to do so? What are the popular addon and are they worth it? Many thanks. Edit: The prompting of this post came when I saw that Ninja Trader currently costs $50 a month.