“It’s the oldest trick in a crooked cabby’s playbook — and it’s about to become obsolete. Taxi Turvi keeps hacks honest by tracking their route with GPS technology, then checks it at the end of the journey to see if there was a shorter, cheaper way to go. The free app — the brainchild of a former NYC resident whose Southern accent made her a frequent victim of the trick — was launched two weeks ago. To use it, riders simply press ‘start’ at the beginning of their trip. Then, at the end of the ride, they hit ‘stop’ — and the app displays the route that was taken in a red line. The shortest route on the same map is overlaid in a blue line.”
http://www.nypost.com/p/news/local/taxi_app_keeps_you_on_track_zWuw0KmtuycK1YIBwTQvBN