Xcode is a complete developer toolset for creating apps for Mac, iPhone, iPad, Apple Watch, and Apple TV.

Xamarin Studio allows you to design incredible user interfaces for iOS and Android and develop native iOS apps on Windows.

MonoDevelop (also known as Xamarin Studio) is an open source integrated development environment for Linux, macOS,MonoDevelop on Mac OS X.

WaveMaker Platform is a platform for rapid application development for web & mobile apps.