Yes, both Appoint.ly and Calendly offer a Free Trial.
Appoint.ly is designed for Large Enterprises, Medium Business and Small Business.
Calendly is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Appoint.ly Starts at $8/Month when Billed Yearly whereas for Calendly Starts at $8/User/Month when Billed Yearly.
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.
Some top alternatives to Calendly includes Appointy, Acuity Scheduling, Setmore, Microsoft Bookings, Cogsworth, Book Like A Boss, Doodle, Tidycal, Cal.com, DaySchedule, Google Calendar, Calendar and Zoho Booking.