Neighborhood Check app for iPhone and iPad

Check the neighborhood before purchasing or renting you next home!
The App provide the following information:
- Population & distribution at different granularities: from county -> zipcode -> census tract -> census block (also nearby block aggregation);
- Noise level from aviation/airport, railways, roads, highways;
- Superfund & National Priority List information, include details;
- Homeless Shelters include details;
- Electric Transmission Lines with detailed voltage information;
- Odor smell map (Only for Milpitas, BayArea, CA);
- Search any address or place on the map, and find the nearby information around that location.

Our App currently covers data mostly for BayArea, California, but we are working VERY HARD to expand coverage to the entire United States. 
Your questions and suggestions are always welcome, as your satisfaction is our top priority. 
Our goal is to create a perfect product that meets all your needs.