HERE Drive+ - How do I know for which countries turn-by-turn navigation is available in HERE Drive?

In HERE Drive or HERE Drive+, swipe up from the bottom of the screen, and tap Settings > Navigation licence.In HERE Drive, the navigation only works in your home country or area, but you can expand the service to all countries and areas where navigation is available. To do this, swipe up from the bottom of the screen, and tap Settings > Navigation licence > upgrade now.