I can offer some perspective on this. Right now I'm on holiday using very limited roaming data and been using Apple maps extensively. My data usage had been well under control. This in stark contrast to last year when using Google Maps where half my data allowance was gone in the first day. Barely used Google Maps since on mobile other than the rare occasion Apple Maps hasn't been able to locate a specific place or needed street view. Others mileage may vary, but for me, Apple Maps just seems to be more efficient.



