This article will go over the technical and system requirements for running this software on both your PC and mobile device. It offers a whole suite of complementary tools, such as advanced charting and technical analysis, valuation tools, and real-time level II data, to help you build and monitor your positions. Thinkorswim’s cutting edge technology enables trading in stocks, ETFs, options, futures, forex, and options on futures for 24 hours a day, five days a week. If you have a TD Ameritrade account or are considering opening one you have probably at least heard of their Thinkorswim trading software, which is considered one of the premier platforms available to traders today. Thinkorswim Platform Computer/App System Requirements Open an account: $0 stock/ETF trades and transfer fee refund.Minimum to open: $0 for a cash account, $0 for an IRA.2021 TD Ameritrade TOS/Thinkorswim trading platform computer (PC, Mac), laptop, and mobile app minimum system requirements.