Access site via https://sp.chorus.co.nz - you should be able to see the landing page:
Access the hamburger menu in the right top corner and select Escalations under Processes:
After getting to the Escalations overview page scroll down to the banner at the bottom of the page.
Proceed to the App by clicking CHORUS ESCALATE APP:
The App is available only for Registered logged-in users.
Please enter your login details (your email and the password) if the access denied:
After entering the login details, you will be on the Escalations landing page.
Find the Share icon at the bottom of the browser panel:
From the list of options appearing on your screen choose Add to Home Screen:
After adding the name, proceed with Add:
The App with an orange icon will appear on your phone screen:
Selecting the icon opens the app on your phone straight away.
You might need to log in with your usual SP site credentials (email and password):
Then you will see the App: