Nav free gps is just like Garmin or Tomtom

This is an incredible app, Navfree GPS Live India works just like Tom tom and is absolutely free to download ,works like a magic on iPhone 4 on indian roads giving turn by turn directions. I tested in Bangalore, it may not navigate to your doorstep but itll get you there. It doesnt work well on iPhone 3GS as I think 3gs doesnt have gps module in it or may be Assisted gps is not as effective as iPhone 4.

Kiranfusion about Navmii Offline GPS India