Yes, both Google Calendar and 10to8 offer a Free Trial.
Google Calendar is designed for Large Enterprises, Medium Business and Small Business.
10to8 is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of 10to8 begins at $9.60/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 10to8 includes Appointy, Acuity Scheduling, Setmore, Calendly, Square Appointments, Cogsworth, Book Like A Boss, Scheduly, ClickBook, DaySchedule, Appointmind, i-Scheduling for Appointments and CatchApp Bookings.