This does not appear to be a turn-by-turn app. But thats not what I expected it to be. Rather, it is a very comprehensive guide to the multitude of points of interest and attractions located along famed Route 66. Everything from hotels/motels, restaurants, kitschy art objects, famous gas stations, and more. The level of detail is enough to fill a book, yet the information and mapping is all laid out in a logical and extremely useful fashion. It seems the developers have thought of just about everything. They even include a red line along the map showing you the route to take to stay on the original Mother Road (again, it is not turn-by-turn navigation, but at $3.99, I wouldnt expect it to be). Ive traveled much of Route 66 over the past 3 years. A group of us are planning a big road trip to do all of Route 66 from Chicago to LA this year. This app will be an invaluable aid for that trip! I own multiple books on Route 66 and treasure them all. But this app will take up zero room in the glove box and it is a lot more convenient to use than a book. Two big thumbs up from me!