Stockpile lets you buy and sell stocks like most other stock trading apps, but it also allows you to gift single shares of stock or buy fractional shares with a very low cent trade fee. The latest addition in was Apple Business Chat, which I am using more and more frequently to grab quick stock quotes. International travelers love that you can use your Schwab Investor Checking ATM card anywhere in the world with no fees. E-Trade is also the owner of OptionsHouse, which has its own powerful app for active traders of stock and options. TD Ameritrade gives you a choice of several mobile apps. Many stockbrokers expand to open their own bank. Its capabilities will be available for other asset classes over the coming year.