I've been on projects with both: For business like apps, Xamarin (Forms in my case) is miles ahead. Although Xamarin.Forms isn't really stable (We experie

I've been on projects with both: For business like apps, Xamarin (Forms in my case) is miles ahead. Although Xamarin.Forms isn't really stable (We experienced quite a lot of regressions with each new version) neither is Corona. Corona is nice if you have a lot of custom graphics, but if you are going for pretty standard user interaction, you will spend a lot of time recreating what exists on other platforms. For both Xamarin.Forms and Corona you will run into the limitations, but with Forms it is much easier to adjust those with native code. I think the main issue with Corona is that they are more focussed on the game case (for which it works) Finally, I really started to appreciate C# after doing Lua, PHP and JavaScript for years. Especially on a complex app, the static typing really helps making changes to code you did not write yourself.