Team Calendar Sync will sync your Exchange calendar with your Android device. What does Team Calendar Sync do that Android does not?. TCS will sync each calendar individually, which means you can create and update events on specific calendars. TCS will sync a calendar that has been shared with you by another user. TCS will sync Office 365 group calendars. TCS supports downloading attachments from your events. TCS allows you to NOT sync reminders if desired. How does it work?. TCS syncs events from Exchange to Android. You view your calendar using your Android calendar (other calendar apps may also work). You can make changes in Android and they will sync back to Exchange. Team Calendar Sync works with: Exchange 2007 SP1, Exchange 2010, Exchange 2013, and Exchange Online (365). Team Calendar Sync does not work with: Free Outlook.com and Kiosk accounts are not supported. POP3 / SMTP / IMAP accounts are not supported. Limitations: Resource calendars and public folder calendars are not supported. A workaround is to move the calendar under a generic user account. Event category colors are currently not supported. See the wiki at TeamCalendarSync.com for more information.