Mobile App

if you’re serious about trading, you’re going to want the ability to do it on the go, which means choosing a broker with a strong mobile trading app. These apps range from bare-bones — the ability to execute basic trades and view quotes — to near mirror images of a web or desktop platform, with advanced capabilities like charting, complex options trades and screeners.

In our roundup of best investing apps, we picked TD Ameritrade and E-Trade as the winners for stock trading — both offer near-desktop trade capabilities on their mobile platforms. But if cost is your primary concern, Robinhood and Loyal3 are worth a look. Both services offer commission-free trading, though Loyal3’s selection is limited to around 70 blue-chip stocks.