iCloud Calendar Sync is Caldav client for Android to synchronize calendars with iCloud Server by your Apple Id. From now, you can use Apple calendar service in your devices. I am very happy if you find a bug send me an email, please. Without detailed error description I often can't do anything especially when I can't reproduce it. If you report bugs I can fix them quickly. :DPlease UNINSTALL the free version before you install the paid one (and vice versa).Features:* Suitable to using with iDevices & Mac OSX Calendar.* Two-way-sync with iCloud server.* Support multi-AppleId and multi-Calendar* Basic support for self-signed certificates* Auto-provisioning* High security, stores passwords encrypted* Efficient sync-algorithmLimitation on Free version :* Invite, reminder and share calendar by email.* Fully support Recurring and Exception events.* Fully support Reminder.BTW : Please contact with me (English, Vietnamese, French) if you have problems, just writing a comment like "Doesn't work on... " won't help neither you nor me to get it running on your device.iCloud and Apple are trademarks of Apple Inc., registered in the U.S. and other countries. The author of this app is not related to Apple in anyway.