Star Walk is really an amazing app. In fact it could be the most amazing app I barely ever use. What you do with Star Walk is walk outside at night a lift you phone in the air, then Star Walk will show you the stars you are looking at and all the constellations around you. This app really is amazing. As you move your phone around it shows the stars that are directly behind your phone and what constellations they make up. Not only that but I lowered it and it showed my neighbors house as well. I really don’t know how it works but it does and works really well. It is a little pricey at $2.99 but if you love looking at stars then this is the app for you.