It's in flutter so it's cross platform. if I were to do it again I'm not sure if I would keep it in flutter or unity. I've made android apps in the traditional java before and I wasn't a fan, that was a decade ago though so maybe it's gotten better.
Viewing post in Stellar Broadcast a Sci-Fi text adventure game
In Java, it allows me to do everything, and using Android Studio IDE with its .XML visual design, in my case, speeds up the development process. I'll leave you a link to my games here: https://play.google.com/store/apps/developer?id=Rays%26Rolh+Developer