I'm making this post to note some of the differences I've noticed between the two apps when using offline mode. Let me know if you find any other differences I might have missed.
Things that Apple Maps does that Google doesn't:
- Walking and Public Transport routes.
- Location details (Opening Hours, Phone Number, Ratings,…) only if cached on device, otherwise it won’t show anything other than the location.
Things that Google Maps does that Apple doesn’t:
- Show phone numbers for all businesses (no need to be cached from what I can tell).
- Less storage occupied for around the same location/area downloaded.