TD Ameritrade is described as 'combines innovative trading technology, easy-to-use and understand trading tools, investment services, investor education and outstanding client service to create a great financial services experience' and is a Stock Trading App in the category. There are more than 50 alternatives to TD Ameritrade for a variety of platforms, including Online / Web-based, iPhone, Android, Windows and iPad. The best alternative is MetaTrader, which is free. Other great apps like TD Ameritrade are Robinhood (Freemium), Seeking Alpha (Free), Bloomberg (Freemium) and Schwab (Free).
MetaTrader is a trading platform for financial markets: Forex, Stocks, Futures and CFDs. It offer superior tools for comprehensive price analysis (technical and fundamental), use of automated trading systems (trading robots) and copy trading (trading signals).
Robinhood is a new way to invest in the stock market. Zero-dollar ($0) commissions are available for Robinhood Financial self-directed individual cash or margin brokerage accounts that trade U.S. listed securities via mobile devices.
Manage your money and track the markets no matter where you are. Schwab’s mobile app makes it easy to monitor your accounts, trade, research investments, and follow today’s market news—whenever and wherever you want.