Cal.com

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share of active installs on each version of this plugin · 65% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

Refined from the date this plugin crossed into its current band.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

1. ★★★★★ kptguven

   8mo ago

   This hasn’t been tested for WordPress version 6.9 and it didn’t work when I installed it. I just got “Error Code: 404. Call Link seems to be wrong.” and couldn’t resolve the issue. I suggest trying another solution. This topic was modified 6 months, 2 weeks ago by kptguven.

   Read on wp.org ↗
2. ★★★★★ Alex Medick

   3.8y ago

   If you haven’t heard of Cal.com, they’re a killer open-source alternative to Calendly (cal.com is a much better product design and UX wise, imo). They just launched a WP plugin for easy integration on your WordPress site. It definitely rocks and you should be using this plugin + product right away.

   Read on wp.org ↗

1 disclosed vulnerability on record for this plugin, fixed in the current version. Sites on older versions stay exposed until they update.

1. Medium · 6.4 Cal.com <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting ↗
   2025-03-31 CVE-2025-31604 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 1.0.0 Patched in 2.0.0

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0.1

Translated into 1 language, 1 at 90% or more

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

1. 2024-09-06 900+ → 1K+ up after 49 days in tier
2. 2024-07-19 800+ → 900+ up after 47 days in tier
3. 2024-06-02 700+ → 800+ up after 1 days in tier
4. 2024-06-01 800+ → 700+ down after 4 days in tier
5. 2024-05-28 700+ → 800+ up after 57 days in tier
6. 2024-04-01 600+ → 700+ up after 57 days in tier
7. 2024-02-04 500+ → 600+ up after 1 days in tier
8. 2024-02-03 600+ → 500+ down after 1 days in tier

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

• Optix calendar 10+ installs · 3.6★ · 4 shared tags C
• Appointment Bookings for Zoom GoogleMeet and more – Wappointment 1K+ installs · 4.5★ · 3 shared tags A
• TrueBooker – Appointment Booking and Scheduler System 600+ installs · 4.5★ · 3 shared tags A
• PreBook– All-in-One Appointment Booking and Scheduling Solution 10+ installs · 3.6★ · 3 shared tags C
• A Appointment scheduling and Booking Manager 10+ installs · 3.5★ · 3 shared tags D
• Schedopia – Appointment Booking & Scheduling — installs · 3.6★ · 3 shared tags B

Embed this report card

Drop a live Pulse card for Cal.com into a readme, a review or a deck. It updates itself.

Cal.com: 1K+ active installs, 3.0★ (2 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/cal-com