Yes, both FreeBusy and Ganttic offer a Free Trial.
FreeBusy is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Ganttic is designed for Large Enterprises, Medium Business and Small Business.
Pricing for FreeBusy Starts at $4/User/Month when Billed Yearly whereas for Ganttic Starts at $25/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 Ganttic includes Appointy, Scheduly, ScheduFlow, SnapAppointments, InVision, Resource Guru, DaySchedule, Web-appointments, i-Scheduling for Appointments, CatchApp Bookings and Zoho Booking.