You can add an iCalendar feed from another calendar, such as your Apple calendar or Google calendar, to your Teamup calendar. Then you can see events from that calendar right on your Teamup calendar.
For example, you may wish to your the calendar on your iPhone to set up reminders from other iOS apps. Then, to get those reminders right in your Teamup calendar, you can set up an automatic feed. You just need to get the iCalendar feed URL, then add it to your Teamup calendar.
You can then paste the feed URL into your Teamup calendar settings. You'll need to do this part in a browser or mobile browser. Follow these steps.