How do I invite people to a calendar?

From OurCal's Groups view (tap the 👥 Groups button in the top right of the calendar):

1. Tap the group you want to invite a member to
2. Tap the Invite Members button in the top right
3. Share your group's invite link

Newly invited members just need to follow your invite link and tap "Join Group" — they'll be guided through downloading OurCal and creating an account.

Once joined they will be a member of your group with access to all shared calendars, plus a private calendar of their own.

They'll also have the ability to create additional calendars for the group, add events, and send messages.