Yes, both Google Calendar and HeySpace offer a Free Trial.
Google Calendar is designed for Large Enterprises, Medium Business and Small Business.
HeySpace is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of HeySpace begins at $3.75/User/Month when Billed Yearly, while pricing details for Google Calendar are unavailable.
Some top alternatives to Google Calendar includes Appointy, Calendly, Cogsworth, Scedule, Book Like A Boss, Meetin.gs, Calendar.AI, EasyCalendar, Office Tracker, MeetingPlanner.io, DaySchedule, Fantastical Scheduling and Calendar.
Some top alternatives to HeySpace includes Todoist, TeamGantt, Teamwork, nTask, Taskworld, Today, MeisterTask, Teamly, Taskwall and SmartTask.