Tripwolf is a free app just released last week that gives you travel guides for over 500,000 destinations worldwide, combining info from professional travel guide publishers and user-contributed information. The app limits you to having three destinations on your iPhone at one time. And while the guides for major cities have a considerable amount of information, lesser destinations, such as Kansas City, Missouri, or Des Moines, Iowa, only have a basic info page and a listing of accommodations. You can access the guides online, or you can download them for offline access later. The app senses your location, and if you shake your iPhone, it offers recommendations close by. Categories of information include Not to miss, Nightlife & entertainment, Eating, Hotels & accommodations, Shopping, Culture & sights, Nature & adventure, Sports & wellness, Transport, Destinations, and Neighborhoods. The app also allows you to choose how much information you want to use offline and also takes different network connection speeds into consideration. You have the choice of downloading either text only or the whole package that includes pictures.