Calendars allows syncing Tasks with Google Tasks or iOS Reminders. The sync with iOS Reminders takes place upon reminder creation (either in Calendars or the Reminders Client app), edit or Calendars launch. This sync is instantaneous. Calendars syncs with Google Tasks after the app launch, task creation or edit in the app. The Tasks added or edited via Google web interface will sync upon app launch or after you prompt the app to sync in settings. Calendars syncs with iOS Reminders by default.
To set up the sync:
- Tap the gear icon.
- Tap Task Options.
- Enable the toggle for iOS Reminders or Google Tasks.
Note: Calendars cannot be synced with Google and Reminders at the same time.