Business Insider writes, There's a new, must-have app for my iPhone that's changed the way I use the device. It's called Grokr, and I've been testing it for a few weeks now. While some compared it to Google Now, a feature from Google for Android phones that anticipates what you might be searching for and delivers it automatically, Grokr is a bit different. Grokr pegs itself as a personalized search and discovery app, which anticipates and recommends information. The app learns everything you like and prompts you with breaking news, trends, up to date traffic information, weather, sports scores, restaurant…