Calendly offers Free Trial, but Zapier does not.
Calendly is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Zapier is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Calendly Starts at $8/User/Month when Billed Yearly whereas for Zapier Starts at $19.99/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 Zapier includes Pabbly Connect, Integrately, eZintegrations, Zoho Flow, ZapUp by 500apps, SaaS Integrator, Built.io Flow, Activepieces and ApiX-Drive.