MonoTouch is described as 'Allows developers to create C# and .NET based applications that run on the iPhone. It is based on the Mono framework and developed in conjunction with Novell. Unlike Mono applications MonoTouch "Apps" are compiled down to machine code targeted specifically at' and is an app in the development category. There are more than 25 alternatives to MonoTouch for a variety of platforms, including Android, iPhone, Windows, Web-based and Mac apps. The best MonoTouch alternative is Flutter, which is both free and Open Source. Other great apps like MonoTouch are Apache Cordova, Appcelerator Titanium, B4X and RhoMobile.