[pyrophane]

Does Uber use Apple Maps for its drivers? I would assume so, if they are on iOS. That could certainly explain why several comments in this thread mention Uber's direction finding services getting worse. My rather subjective experience with Apple Maps is that they haven't caught up with Google yet.

[no_future]

I remember reading somewhere that they use the Foursquare API for something.

[jarek]

They might use Foursquare API for geolocating points of interest? Citymapper uses that and I assume it's for a reason (cheaper than Google?)