In the Budapest metropolitan area, supported vehicles include the Budapest Metro, BKV buses and trams, and BHÉV trains.
MÁV-START trains are also supported throughout Hungary for long-distance routes, such as between Budapest and Debrecen.
Apple Maps gained a Transit tab in iOS 9. The feature lags several years behind Google Maps, but Apple's public transportation support is exhaustive, mapping all station entrances and listing departure times. Apple Maps also provides detailed advisories about service interruptions and other changes.
At launch, the feature was limited to Baltimore, Berlin, Boston, Chicago, London, Los Angeles, Mexico City, New York, Philadelphia, San Francisco, Sydney, Toronto, and over 300 cities in China. Since then, Apple has been working to expand support for public transportation to other cities around the world.
For a regularly updated list of cities with Apple Maps transit, visit the iOS Feature Availability page on Apple's website.