There's also the Zillow app that can give you information about homes near you when you're driving. The heart of Zillow, home prices, is simple and available directly on their homepage. Type in your address and then choose Buy, Rent, or Sell. Almost instantly you can see how much your house is worth.
I just want to know how much my house is worth so that if I get enough money I can buy it for my mother and her siblings.