Yes, both Dotcal and Calendly offer a Free Trial.
Dotcal 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 Dotcal Starts at $8/Month when Billed Yearly whereas for Calendly Starts at $8/User/Month when Billed Yearly.
Some top alternatives to Dotcal includes Appointy, Setmore, Calendly, Appoint.ly, Cogsworth, Book Like A Boss, Cal.com, ClickBook, DaySchedule, i-Scheduling for Appointments, Tocaly and Calendpage.
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.