Dolly is retired and wants to invest in the stock market while traveling, but some of her brokerages don't support using smartphones. Leo says that there may not be an app to run, but she may be able to access her accounts using the phone's browser. What Dolly may have to do is select the "choose desktop" option. Leo also says that using a tablet like an iPad would be a better option since she'd have a bigger screen. She can also look to see if they have an app since many of the big companies do. TD Ameritrade, for instance, has an app, as does Schwab and Fidelity. Another option is to use a mobile Wi-Fi device like a MiFi card and she can use anything from a phone to a laptop, and access it anywhere.