Google Maps vs Apple Maps
app and the data behind it have a head start of six years before Apple Maps, and, although Apple's mapping data is improving compared to the early days of its launch, it is still behind Google Maps, an in-depth study by Justin O’Beirne found. The difference is most pronounced in the level of details that Google shows, down to buildings' HVAC vents, but also the coverage of remote areas.
Google uses satellite imagery and its own cars are constantly scouting the the world's routes for updating Street View, while Apple likely relies on third-party data like TomTom, and it shows in the side-by-side comparison snapshots above. Apple recently began releasing indoor maps as well
, but it obviously has a way to go to match Google's undetaking.