Here's what Apple's official website says:
Developers will be able to select a specific area, and users will be able to search for locations and routes in that particular area. Of course, the library - which provides a free daily limit of 250,000 map initializations and 25,000 service calls - offers several other features as well. For more info on MapKit JS, head to the Source link below.
Funny to see people commenting/posting hate-like comments about Google apps like it was never useful. What's so funny about? is that most of them use phone who's OS is provided by Google. Bunch of hypocrites, PEACE OUT.