how to use uber - what is uber - - Uber is not a cab service, but a car service that allows you to request a private driver in almost any city that Uber is active. Uber connects passengers with private drivers through their iPhone and Android phones. The service uses a dispatch app when a passenger pings for a ride to send the nearest driver to your location. Uber is a cashless service; they charge your ride directly to the credit card on file with your account. This article will walk you through the process on how to request a car.