So where does that leave us? Swift? Objective-C? Java? Well I love Swift, and I've been a Java developer for going on 17 years, but the idea of having to maintain two code bases for each version of the game (iOS and Android) is not terribly appealing.
I learned about Unity about a year ago, and was fascinating with the idea that there was this whole self-contained environment specifically designed for game development, and bonus! You can compile your games for iOS and Android. And oh yeah, you have a massive community to keep you from hitting too many walls and the learning C# has been quite a lot of fun, and I'm completely in love with Visual Studio Code.
I've settled on Unity as the environment using C# to develop this game and that decision has been, so far, a good one. Once you start thinking in the "Unity way," which i'm still getting there, does make a lot of sense for games. I'm not anywhere near a Unity expert, still learning how everything works, how to get all of the pieces of the puzzle to fit together without jamming it all together... with a hammer.