From the Store description (sic):
Use UMeter to track how much your Uber cost while you're riding it.
- Detect your current location, check with Uber service, and show rider all the available services.
- Start trip, and complete the trip when you reach your destination; your Uber fee will calculate in realtime based on Uber rate at your location and service type rider choose.
- Tolls fee is not automatically include, as for the results, rider have to add it in manually.
- This is just an estimation, Uber final charges is the official
Some of the promo screenshots:
UMeter UWP is freeware in the Store here.
The developer does note: "It do have the issue that if the car goes into a tunnel, it can't correctly detect the distance, due to loss of GPS signal." Anyway, your feedback welcomed in the comments.