Frequently Asked Questions

• General
  • What does DAVx⁵ stand for?
  • How does DAVx⁵ integrate with Android?
  • How to debug DAVx⁵-related problems
  • [Google Play] Can I install DAVx⁵ on multiple devices without paying multiple times?
  • Can I use DAVx⁵ with Tor?
  • Can I use DAVx⁵ with Android <7?
• Synchronization
  • DAVx⁵ does not synchronize (at all, or not automatically)
  • How can I change the base URL?
  • Why is my HTTPS certificate not accepted?
  • Why does WiFi SSID restriction need the location permission?
• Contacts
  • [Google Contacts] DAVx⁵ address books don't show up in the list
  • I have set up DAVx⁵, but existing contacts are not synchronized.
  • Why can't I create/edit/view contact groups on my device?
  • There's only one input field per postal address. How to enter a structured address?
  • Can I show contact birthdays in the calendar?
• Calendars
  • How can I subscribe to a HTTP (Webcal) or local .ics (iCalendar) file?
  • Some of my recurring events are not rendered or synchronized correctly (exception dates etc.).
  • Calendar app doesn't set event color
  • How can I change my calendar colors?
  • [Android 8.0] NullPointerException: Attempt to invoke virtual method '…getTimeZone()' on a null object reference
  • Can I use DAVx5 with the Outlook app for Android?
• Tasks
  • How do I use tasks and advanced features like sub-tasks with DAVx⁵?