While Robinhood does not give you access to a full range of investments like mutual funds, it works great for stocks and ETFs, and recently added support for Bitcoin. First is the basic TD Ameritrade Mobile app, which gives you much of the power you have on your desktop stock trading app in a mobile experience for iOS, Android, and Windows phones. Futures traders can use the mobile futures ladder. E-Trade is also the owner of OptionsHouse, which has its own powerful app for active traders of stock and options. Their standard app includes quite a bit of sharing capability, allowing you to capture a screen and email it to a friend, or post it on Twitter. You can also use your Apple Watch to receive notifications. You can also transfer funds to your account manually.