The Zillow Real Estate mobile app has all the features anyone who wants to buy, sell, or rent a home in the US could want. Created by Zillow, it comes with a mortgage calculator, housing rental costs and values. It relies on GPS technology, so you will be able to use it as you drive around looking for property. It obtains real estate information from your location. To use, just tap Current Location and a map will pop up. Values will be shown, while color-coded arrows signify whether a property is for sale, been sold or available for rent. Zillow moves along with your travel so the data is relevant to your position. You can also type specific locations (city, neighborhood or a particular address).