We offer two-way sync with Google and Outlook (Office 365) calendars on our paid plans, that allow events on your Google/Outlook Calendar to block out time on your Appointy schedule as unavailable and appointments on Appointy to appear as events on Google/ Outlook calendar.
In order to set this up, Go to the Appointy Marketplace:
Under Calendars ➜ Click on Google or Outlook Calendar ➜ Click on Connect ➜ Select or sign in into your Google or Office 365 Account ➜ Select a Calendar that you want to sync with Appointy ➜ Click on Update, and make sure the sync option is set to "BOTH WAYS"
Note: 2-way sync with Outlook (Office 365) is only available in Professional and above plans