Yes, both Calendly and Cal.com offer a Free Trial.
Calendly is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Cal.com is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Calendly Starts at $8/User/Month when Billed Yearly whereas for Cal.com Starts at $12/User/Month when Billed Yearly.
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.
Some top alternatives to Cal.com includes Appointy, Calendly, Cogsworth, Kwikcal, Calendify, Book Like A Boss, EasyCalendar, Calendoo, Dotcal, i-Scheduling for Appointments and Calendar.