SCVNGR – iOS app review
An app for U.S. only – Out of about 150 cities, it detects the city you’re in using geo-location and points you to nearby treks. The catch? As you move along, you’re asked to complete fun challenges, like “write a description of how spicy your food is” or “snap a picture of the Liberty Bell,” leaving you with digital “souvenirs” for your memory bank. As reward, you can also unlock on-the-spot treasures like discounted ice cream cones, or collect points toward bigger prizes such as an iPad.