What's the best way to use my phone for navigation on Budapest's public transport?

Budapest has an excellent public transport system of trams, buses, and metros. With your eSIM, you can use apps like Google Maps or the local BKK Futár app in real-time to see live schedules, plan your routes, and receive disruption alerts. This is especially helpful for navigating the tram network, which is one of the best ways to see the city.