Introduction

The following steps will describe what you need to start developing your first iOS app with Visual Studio 2017 Professional & Xamarin.
My motivation to write this is to help my colleagues creating their first app for our iPods & iPads.
As an example project I'll be making a "remote wallet" for the Gridcoin client, to check your current balance.

Note: I won't be covering creating an Apple Developer account.

Mac OS X machine (OS X 10.12+)

• Open up the app store & install Xcode (9.2 in our examples).
• Go to https://www.visualstudio.com/ and download & install Visual Studion IDE Professional for Mac (2015+).
  Make sure to check "iOS", all the other options can be disabled.
  
• Go to System Settings -> Sharing, enable "Remote Login" (Extern inloggen) and select "All users" (Alle gebruikers).
  

Windows machine (Visual Studio Professional 2015+)

Installation

While installing Visual Studio, make sure to check options like "Mobile development with .NET". You can disable all Android parts.

Configuration

• Start up Visual Studio, go to "Tools" -> "Options", navigate to Xamarin.
• Click "Find Xamarin Mac Agent" & select your previously configured Mac. If your Mac is not showing up, choose "Add Server..."
  
  After connecting to the IP or hostname of the Mac machine, use the username & password of your Mac in the following screen:
  
  This will push some stuff to the Mac & you'll be ready to create your first app!

Simulation won't work?

Make sure you update both Visual Studios to the latest version available.