Ultro App for IPhone/iOS Users

You would 

Step 1: Visit the following URL on the browser from your iPhonehttps://mycompanycode.ultrodev.com/login

You will get the following screen

 

Step 2: Click on the button as shown in the image below 

Step 3: This will take you to the following screen. Now click on Add to Home Screen

Step 4: After clicking Add, you will see the icon on the home screen of your phone