Synchronize one or more of your mail.com Organizer with your Android device to keep your appointments up to date and you never miss one.
You need an app that can synchronize your calendar with the CalDAV protocol. In these instructions, we use CalDAV-Sync. This app is from a third-party provider. mail.com offers CalDAV as an additional service and has no influence on whether and at what price applications with CalDAV are available for your device or system.
You can use the mail.com Organizer with the calendar app that comes with your Android device.