OpenSync App

Open Source CalDAV/CardDAV (Contacts and Calendars) Sync App for Android.

OpenSync is a Open Source CalDAV/CardDAV (Contacts and Calendars) Sync for Android. it has been tested with Nextcloud Server. its integrates natively in Android calendar/contact apps. its a fork from opensource project DavDroid https://davdroid.bitfire.at/source/.