What technology to choose for cross-platform mobile development?

Question

Mobile development

Hello. I figured out the api, now I choose which technology to learn for client development. You would say that each platform has its own technology, etc. but I do it myself, and therefore if you learn a bunch of technologies, it will take a couple of years. I looked at all sorts of frameworks, but for some reason they do not give me hope (perhaps because I'm used to the concept of a framework on the web).
What do you recommend in my case?

Answer 1

Xamarin for Applications.
Unity3D for games.
By the way, in both cases the language is C#.