MeetingRule offers Free Trial, but Calendar does not.
MeetingRule is designed for Large Enterprises, Medium Business and Small Business.
Calendar is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for MeetingRule Starts at $24.99/Month whereas for Calendar Starts at $6/Month when Billed Yearly.
Some top alternatives to MeetingRule includes SimplyBook.me, Meetin.gs, DeskFlex, SimplyMeet.me, Calendar, deskbird, Bookspace, YArooms and RoomCheckr.
Some top alternatives to Calendar includes Appointy, Calendly, Cogsworth, Scedule, OpusTime, Book Like A Boss, Calendar.AI, EasyCalendar, Hupport, Office Tracker, Schedule it, Schedule.cc by 500apps and DaySchedule.