Posted by Toad

I would suggest learning Unity if you like the .NET/C# language. Unity has a ton of great features that I use for many of my games. Unity can also build to almost any platform on the market including iOS, Android, PC, Mac, Linux, and even the new Apple TV OS. Unity is also an engine on its own meaning that it handles all the physics calculations, rendering, and a ton of code that's behind the scenes which makes Unity very superior.

If you are into Java on the other hand, which is my preferable language, I would suggest using LibGDX. LibGDX allows you to code games in Java and build them to iOS and of course other platforms that natively support Java such as Android, Windows, Mac, and Linux. However, LibGDX will require more coding on your end as it is not integrated into its own development environment like Unity is, therefore leaving you without a few tools that you will need to create yourself.