1. Easy-to-Use Interface for Trouble-Free Investing Penny is simple to use. As an investor for the first time, the streamlined appearance of the Penny app makes it easy to sort through market information, track your investments, and make trades. You do not need to be an intelligent one to use the app—its clean look and easy-to-use interface help you remain concentrated on making inte... https://play.google.com/store/apps/details?id=tw.com.weather.interdaytrade&gl=us&hl=en_US