Many are starting to claim that Uber is charging different prices for different people. People being charged completely different prices for the same exact ride and at virtually same time. Are we all being duped? How does Uber discriminate?
Here's an example https://www.youtube.com/watch?v=EMm4ehc7oCw
The Guru Take
Check your GPS and remember that UberPool pricing is affected by demand
UberPool is guaranteed pricing, so the user on the left indeed is looking to pay more than her friend.
The most likely scenario is due to the nature of UberPool's pricing. In this video, two people are requesting similar routes sequentially. This naturally raises the demand for that route. This can impact the pricing/estimates.
While UberPool's fare is based on duration and distance, the price will be adjusted by demand, i.e. instances of picking up other people. In similar words, you are essentially given a discount for sharing a ride. Perhaps the user on the right is given more discount due to the more likely possibility of incurring delays due to picking up other users.
Another possibility (albeit less likely) is that the two phones resolved two different routes, potentially due to the ever changing traffic factor and slightly different GPS locations picked up by each phone. Yes, the two phones are right next to each other, but devices' GPS can pick up slightly different locations. This can make a big difference, say, one user's pick up location being on the other side of the road and it ends up requiring a U-turn.
Uber Driver, CEO of TaxiFareFinder and Unleashed, LLC