There are already many requests from users to add public transport support. It would be great to start using that existing OpenStreetMap data and add/update transport schedules directly from the app. For anyone interested to volunteer, there is also a good starting point here.

To import bookmarks from MapsMe and other apps which support KML/KMZ on Android, open Bookmarks menu from the bottom toolbar and press Import button.

Automated import from iOS is not technically possible, so here is a small guide

Android 5 support, OSM login, bookmarks export, and some other fixes are already in review, as the CarPlay for iOS. Please be patient, or install the latest betas.