Following my tutorial on how you can create Android Plugins for Unity 3D, I decided to write a tutorial on how to create IOS plugins for Unity 3D with Objective C. I will be following the same incremental approach used in creating the Android plugin. This tutorial will cover the most basic aspects of writing a custom plugin for IOS. It covers the aspects of creating the XCode static library. Generating the Unity Project and running the project using Unity. To understand the tutorial you should have a basic understanding of Objective C, C, C# and XCode.