In today's connected world it is more important than ever to be able to view your calendar or diary events in real-time on your mobile device while you are out and about.
To add your calendar feed to an email or calendar client on a separate mobile device, you can click the Subscribe to Calendar button on the calendar view.
Alternatively copy and paste Your Calendar URL form the field at the bottom of the filter form. Your calendar URL will be in the following WebCal format, so it might be an idea to copy and paste it, then email or text it to the relevant device to avoid having to type it in (and potentially misspell it).
Add calendar feed to Google Calendar
This link from Google's Calendar Help explains how to add your ShowHouse calendar to that software - click the Add Using a Link option. This calendar can then be viewed on any computer or mobile device with your Google Calendars configured.
Add calendar feed to Microsoft Outlook
This link from MS Outlook's calendar help explains how to subscribe to your ShowHouse calendar from Outlook. https://support.office.com/en-us/article/Import-or-subscribe-to-a-calendar-in-Outlook-com-or-Outlook-on-the-web-CFF1429C-5AF6-41EC-A5B4-74F2C278E98C
Add calendar feed to iPhone
A web search for "add subscribed calendar to iPhone" will return lots of helpful links to help you get your diary synced with your iPhone, but this link is particularly useful and easy to follow.
Note on delayed calendar updates
Some users experience issues with their subscribed calendar in Gmail not updating regularly. Read more in this article on delayed calendar updates.