The best overall stock trading app experience comes from TD Ameritrade, one of the largest brokerage firms in the country.TD Ameritrade actually offers multiple mobile apps depending on your needs. First, the basic TD Ameritrade Mobile app gives you much of the power you have on your desktop stock trading app in a mobile experience for iOS, Android, and Windows phones. Canadian Stock Market Watch - Apps on Google Play Canadian Stock Market Watch. Offers in-app purchases. Add to Wishlist. Install. Powerful stock tracking tool for Canadian Stock Markets. Track Stocks and Indices from Toronto Stock Exchange (TSX or TSE), Toronto, Canada. Requires Android. 4.0 and up. Content Rating. Everyone. Learn More. Interactive Elements. Digital Purchases.