A free program for Android, by Finance Frontier.

Get the latest market data on your mobile device. The Finance Frontier Stock Tools app gives you real-time access to live stock prices for all of the major U.S. stock exchanges. You can view and track any asset for which there is a trading price, and get key information like the price, volume, market cap, and more. 

The Finance Frontier Stock Tools app provides a user-friendly interface for tracking your investments. You can view the current price, change, and volume of each asset, and see how your portfolio is performing. You can also get a daily breakdown of your trading activity, including the number of shares you’ve traded and the profit or loss you’ve experienced.