Yes, both FreeBusy and Appoint.ly offer a Free Trial.
FreeBusy is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Appoint.ly is designed for Large Enterprises, Medium Business and Small Business.
Pricing for FreeBusy Starts at $4/User/Month when Billed Yearly whereas for Appoint.ly Starts at $8/Month when Billed Yearly.
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 Appoint.ly includes Appointy, Calendly, Microsoft Bookings, Cogsworth, Book Like A Boss, ClickBook, DaySchedule, Appointmind, Odoo Appointments, Web-appointments, i-Scheduling for Appointments, CatchApp Bookings and Tocaly.