How do I subscribe to my property calendar on my iPhone/iPad?

First check How To Get The Public URL For The Property Calendar.

To sync your property calendar with your iPhone/iPad:

1. Go to your device settings > Passwords & Accounts > Add Account
   
   
   
   
2. Choose Other > Add Subscribed Calendar
   
   
   
   
3. Enter the property iCal link on the Server field and click Next
   
   
   
   
4. Review the details and click Save. You will now see the property calendar. You will now see the property calendar under Passwords & Accounts
   
   
   
   
   
5. You will now see the events in your Apple Calendar. If you open the event, you will see that only the basic information is provided on the public iCal.