Can I sync with Google Calendar?

Yes. Because Calendar Op.2 shares its data with the built-in iOS Calendar, you set up Google Calendar through iOS once, and it appears automatically in the app.

1. Open the Settings app.
2. Go to Calendar › Accounts.
3. Tap Add Account › Google and sign in to your Google account.
4. Make sure the Calendars switch for that account is turned on.

If your Google events still don’t appear, open Calendar Op.2 → Select calendars to display and enable your Google calendars there too.

For more detail, see the Google Calendar Help.