What makes a great mobile application? A breakout group from testing company uTest may have an answer in its mobile-app analytics tool called Applause, writes Walter Frick. The app crawls reviews posted on app stores using "natural language search and proprietary algorithms" to rank them on indices related to performance, content and privacy, Frick writes. "It doesn't really matter what the CTO says. It matters what users say," says uTest Chief Marketing Officer Matt Johnston.