# ownCloud 9.0 User Manual

# Contacts & Calendar

The Contacts and Calendar apps are not included in ownCloud 8, and are not supported. You may easily install them by clicking the Enable button on their respective Apps > Productivity entries.

- Using the Contacts App
- Using the Calendar App
- iOS - Synchronize iPhone/iPad
- Synchronizing with OS X
- Synchronizing with KDE SC
- Thunderbird - Synchronize Addressbook
- Troubleshooting