How do I subscribe a calendar without Google Calendar?

Android does not support calendar downloads natively. However, there are applications which do just this. One which works great is ICSx⁵. Once you have installed that (some devices have it pre-installed), proceed with these instructions.

Step 1

On the Kalender page, select a calendar you wish subscribe and tap Download.

Step 2

Adjust calendar settings if needed, then tap Zu meinen Kalendern hinzufügen.

Step 3

You will be taken to Kalender page. On the calendar you just added, tap Download.

Step 4

If nothing happens, you do not have an application (such as ICSx⁵) to handle calendar downloads.

Otherwise you'll be taken to that app. Tap

Step 5

Wait while the application downloads and validates the calendar.

Step 6

Tap