Top Mobile apps in the Real Estate game

1. Zillow Real Estate: Zillow is great because it provides information on every U.S. home for FREE. The Android app has voice-search feature, built in GPS technology allowing you to search why you talk, walk or drive the neighborhood. The app is available at Zillow.com. My only caution is that because every home in the U.S. is listed buyers can often be misled into believing a house is valued higher than the market will bear or that homes which are sold are still active for sale.
2. Realtor.com Real Estate Search: Ironically the most accurate Real Estate site, because it is driven by MLS data on a 72 hour delay, ranks lower than Zillow for app ranking. I personally have this app on my I-phone because I know that MLS data is monitored by local boards of Realtors and therefore the quality of the data is the most accurate online. This app also offers an area highlighter which for techies is a cool feature.
3. Trulia Real Estate Search: Trulia touts their app as being designed for "House Hunters on the Go!", however similar to Zillow it can be misleading because it includes homes for sale, rent and recent sales. Easy to use and FREE make it #3 on our list!
4. CraigsList Browser: If you are into CragsList this app is great because it has fast navigation, full browsing features and an easy interface.
5. Real Estate 114: Designed for renters this app features both apartment prices, QRcode search and Star Check to get useful information such as a compass navigation and brokerage calculation.
6. Real Estate by Smarter Agent: This app combines three powerful real estate search tools into one easy to use app. Search for Homes for Sale, in every US Market, recently sold homes within the last three years and apartments for rent.
7. Homes.com: An app I also used on my previous Android it loads quickly, allows you to create custom searches of homes for sale and rent, see detailed lists, search by map and quickly refine your search by price, property type, features and more.
8. Realestate.com.au: Calling all buyers and sellers in Australia this one is for you!
9. Hotpads: Search via map for apartments, houses for rent, real estate for sale, vacation rentals and hotels. HotPads map based housing search allows you to take your search on the road!

10. Century 21 Real Estate Mobile: As a former C21 agent I commend them on developing their own app, which every Realtor can do for a nominal fee. It doesn't require you use a C21 agent or broker.