You're in luck! A-Rix Meter on your Android phone uses your phone's GPS to accurately calculate the fare for you.
Here's what people have to say about A-Rix:
"A-Rix Meter has the best user interface and its integration with gMaps is also quite helpful." - Wall Street Journal India Tech Blog.
"...it’s very easy to quickly read the meter reading and the distance travelled. In my testing, the app performed quite well around Mumbai, meters being off by .50 in most cases." - Preshit Deorukhkar, Beautiful Pixels
"So if you happen to move to a new city, this app is a great way to get comfortable with public transport." - Deccan Chronicle
Simply slide to turn on the A-Rix meter when you get into an auto or a taxi and turn it off when the trip is complete. The meter calculates the distance and the fare live. It also plots the route from your starting location. You can compare it to the actual meter and see if you're being taken for a ride!
A-Rix meter has fare chart information for these cities:
Bangalore - UPDATED!
Mumbai & Navi Mumbai - UPDATED!
Also works in Meru cabs in Bangalore, Mumbai, Delhi and Hyderabad in India (loaded as custom fare by default).
REST OF WORLD:
We are working on getting fare information for other countries. You can use the custom fare option to enter the details if you know them. Send an email to email@example.com if you want to see your city on the list.
If your city is not in the list or you're traveling by a private taxi, there is a custom fare option where you can put in the fare information and use the meter.
Disclaimer: The accuracy of the meter depends on the GPS accuracy in your area, the weather etc. Although it will be accurate at most times to within 10 meters, there might be some conditions in which it isn't accurate. Use the information to argue with the driver at your own risk! We want you to keep yourself safe at all times.
Also, please note that continued use of GPS running in the background can dramatically decrease battery life.