| Calendly | 10,312 | https://calendly.com/ |
| GetYourGuide | 2,155 | https://partner.getyourguide.com |
| Bookly | 2,124 | https://www.booking-wp-plugin.com |
| Chili Piper | 1,648 | https://www.chilipiper.com/ |
| Sched | 1,246 | https://sched.com |
| AddEvent | 1,041 | https://www.addevent.com |
| Acuity Scheduling | 726 | https://acuityscheduling.com |
| Resova | 546 | https://resova.com |
| Cvent | 444 | https://www.cvent.com |
| Cloudbeds | 430 | https://www.cloudbeds.com |
| Whova | 395 | https://whova.com |
| Housecall Pro | 392 | https://www.housecallpro.com |
| HotDoc | 274 | https://www.hotdoc.com.au |
| Momence | 270 | https://momence.com |
| Swoogo | 229 | https://swoogo.events |
| Jameda | 195 | https://www.jameda.de |
| BookVisit | 137 | https://bookvisit.com |
| CalendarWiz | 107 | https://www.calendarwiz.com/ |
| DearDoc | 93 | https://www.getdeardoc.com |
| iClose | 91 | https://iclosed.io |