As of October 15, 2026, Calendly is used by 156,395 websites in the TechLeads index: 52.6% of all Appointment scheduling detections, the 1st most-used of 95 Appointment scheduling technologies.
Quoting these numbers? Credit TechLeads with a link to this page.
Citation
TechLeads. "Calendly Customers and Market Share." Data as of October 15, 2026. https://techleads.fyi/technology/calendly/market-shareHTML link
<a href="https://techleads.fyi/technology/calendly/market-share">Calendly market share (TechLeads data)</a>Websites using each technology in the TechLeads index, and its share of all Appointment scheduling detections.
| # | Technology | Websites | Share |
|---|---|---|---|
| 1 | Calendly | 156,395 | 52.6% |
| 2 | Bookly | 25,735 | 8.6% |
| 3 | FareHarbor | 19,693 | 6.6% |
| 4 | Acuity Scheduling | 16,991 | 5.7% |
| 5 | GetYourGuide | 13,316 | 4.5% |
| 6 | EventOn | 7,880 | 2.6% |
| 7 | Cloudbeds | 7,075 |
In HTTP Archive's monthly crawl of public websites, Calendly was detected on 191,963 pages in September 2026, down 4.5% from a year earlier (peak: 239,678). HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.
Same month, other Appointment scheduling technologies in HTTP Archive: FareHarbor 37,549, EventOn 32,642, Bookly 23,960, GetYourGuide 20,795, Cloudbeds 16,803.
Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.
See all 156,395 websites using Calendly or download the full list as a CSV for $29.
TechLeads scans public websites and detects Calendly from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is Calendly's website count divided by the website counts of all Appointment scheduling technologies we track; a site using two Appointment scheduling tools counts for both. Counts were last refreshed on October 15, 2026 and update daily.
| 2.4% |
| 8 | vcita | 5,735 | 1.9% |
| 9 | MindBody | 3,897 | 1.3% |
| 10 | AddEvent | 3,186 | 1.1% |
| 11 | Chili Piper | 3,095 | 1.0% |
| 12 | BookThatApp | 2,914 | 0.98% |
| 13 | Bookeo | 2,784 | 0.94% |
| 14 | Peek | 2,544 | 0.85% |
| 15 | Zocdoc | 2,445 | 0.82% |
| 16 | SiteMinder | 2,343 | 0.79% |
| 17 | SevenRooms | 2,289 | 0.77% |
| 18 | Mews | 2,128 | 0.71% |
| 19 | Reservio | 2,073 | 0.70% |
| 20 | Setmore | 1,411 | 0.47% |
| 21 | Resova | 1,065 | 0.36% |
Rows link to each competitor's market share page where one exists. The table lists the 21 most-used technologies; ranks are by website count.