Yes, both EssentialPIM and Calendly offer a Free Trial.
EssentialPIM is designed for Medium Business and Small Business.
Calendly is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for EssentialPIM Starts at $39.95One-Time Payment whereas for Calendly Starts at $8/User/Month when Billed Yearly.
Some top alternatives to EssentialPIM includes Appointy, Calendly, Cogsworth, Book Like A Boss, EasyCalendar, Hupport, ScheduFlow, Office Tracker, Appointmind, i-Scheduling for Appointments, AdvancedScheduling and Calendar.
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.