FirstSeedOverview
FirstSeed Calendar can sync directly with Google Calendar. Because syncing happens at app launch, your latest events are always easy to see. Google Calendar-specific features such as per-event custom colors are also supported.
Setup
On iPhone and iPad, open the app settings, tap "Google Calendar", and sign in with your Google account.
On Mac, click "FirstSeed Calendar" in the menu bar, click "Accounts...", and sign in with your Google account.
Add, Edit, Delete
To add, edit, or delete Google Calendar events, please see "Events". The same steps apply to Google Calendar events.