Yes, both FreeBusy and SnapAppointments offer a Free Trial.
FreeBusy is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
SnapAppointments is designed for Large Enterprises, Medium Business and Small Business.
Pricing for FreeBusy Starts at $4/User/Month when Billed Yearly whereas for SnapAppointments Starts at $14.99/Month.
Some top alternatives to FreeBusy includes Appointy, Setmore, Calendly, Cogsworth, Calendify, Book Like A Boss, EasyCalendar, SnapAppointments, hitAppoint, DaySchedule, Appointmind, i-Scheduling for Appointments and Calendar.
Some top alternatives to SnapAppointments includes Appointy, Setmore, Calendly, Cogsworth, OpusTime, Book Like A Boss, Scheduly, Online Appointment Scheduler, GoSchedule, DaySchedule, Web-appointments, i-Scheduling for Appointments and Zoho Booking.