Developer's DescriptionBy ScheduleOnceHave a meeting scheduler integrated with Google Calendar.A free meeting scheduler that integrates with Google Calendar and helps you find common meeting times that work for all attendees. Finding a common time for a meeting with ScheduleOnce is a very simple process. The organizer sets tentative availability for the meeting. Invitees reply with their tentative availability. The organizer evaluates invitee replies and schedules the meeting.