Google Map Vs Apple Map. Apple service is limited to the company's own products only, which means it can be used by apple-made devices only like iPhone, Mac and others cannot use it. With Apple Maps, you can use Flyover mode to get a virtual tour of famous cities. Google Maps has Google Assistant, which comes with voice commands when the microphone button is pressed. Also, offline maps as you said, can't save in apple but can download a whole big map offline. At times apple maps doesn't even have the correct location for a place or store etc. Google Map Vs Apple Map
Apple Maps, on the other hand, uses vector graphics that consume relatively less data than Google Maps.
From the past several years of market presence, Apple maps is far away from reaching the level of popularity & prominence that Google maps have attained amongst its target audience.
Google Map Vs Apple Map Also, offline maps as you said, can't save in apple but can download a whole big map offline. For starters, if a map is accurate enough to guide you to Orchard Road instead of Outram Park when you type Orchard, the App can save much besides time. As Apple Maps uses vector graphics, the satellite view features an impressive photographic appearance.