Hi Scott.
Sorry for the confusion. Uber are a 'private hire vehicle' company effectively acting like a 'cash-free' taxi service.
Effectively, it works by you (the rider) requesting a vehicle to come pick you up from your smart phone - providing you have a payment method available. The driver acknowledges your request from a phone in his car, and comes to pick you up, and you takes you to your destination. At the other end, you get out and get automatically charged based upon the time you spent in the car, and the route you took - the driver has a gps device fitted which tracks the route and the time it took to work out how much to charge you (options to dispute this are available, but I've never needed to use them).
I've found though that a lot of the time you get charged extra via 'surge pricing' when it's busy (or i suspect having deliberately few drivers) and that this has meant it's not economic vs a conventional taxi.
Hope that makes sense!
Best regards,
Dracion
EDIT: Just seen the above post, will make a new thread there. Cheers.