Koalendar – Easy Appointment Scheduling & Booking Plugin
by koalendar · Booking & Events
Turn your WordPress website into a complete booking and appointment scheduling system, with a Free Forever plan
Try it live opens a temporary test site in your browser, which can take about 20 seconds to load. Plugins that rely on outside services or a full server may not work completely there.
Health
A 89/100
Few reviews
Active installs
1K+
≈1.2K estimated
Momentum
+5%
low volume, under 1,000 downloads a month
Biggest opportunity: Swap “booking” for “appointments”. “booking” isn't earning its slot: you're not in the first 24 results for its own search. “appointments” sits at #24 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
89 health vs 69 average across 1,850 Booking & Events plugins
Install conversion
How it's measured →8.7%
of downloads still active
At least 1K of 11.5K lifetime downloads are still running, above its category: the median Booking & Events plugin keeps 0.8%, across 947 plugins.
Downloads count every update, not just first installs, so older and more frequently released plugins read lower. Compare against other Booking & Events plugins, not across the directory. wp.org reports active installs as the bottom of a band, so the real rate is this or higher.
This plugin shipped 1 release in the last 12 months, and every existing install that updated counted as another download. wp.org publishes no split between first installs and updates, so we show the raw rate rather than guess at one.
Details
Directory ranking optimization
How it's scored →How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.
Excellent listing optimization
Most to gain: Rating quality
Updated 59 days ago
Tested up to WordPress 7.1.4, the current branch or newer
5.0★ over 9 reviews, weighted for review count to 4.2★ and held back under 25 reviews
5 of 5 tags set · short description in place
To rank higher: Too few reviews to rank on quality — nudge happy users to leave one.
Get the full rank-higher report →Search visibility
How it's tracked →Directory searches this plugin turns up in, and which way each one is moving. WordPress.org publishes no history of search positions, so this starts the day we first tracked a keyword and never backfills.
42
Momentum
Losing ground
-0.0
Velocity
places per keyword, 28d
26%
Breadth
of keywords climbing, 28d
+0.2
Acceleration
recent half vs earlier
wp.org is where the directory puts the plugin for that search. On merit is where it would sit if results were ranked on rating, support and updates, without the install boost. The last column is how far the wp.org position moved, from our first reading in the last 90 days to the latest.
| Keyword | wp.org | On merit | wp.org move, 90 days |
|---|---|---|---|
| koalendar your tag | #1 | #1 | 0 |
| appointment scheduling your tag | #11 | #17 | down 1 |
| scheduling your tag | #14 | #20 | 0 |
| booking plugin | #14 | #22 | 0 |
| appointment | #22 | #21 | down 3 |
| scheduling plugin | #11 | #19 | — |
| appointment booking app | #13 | #19 | — |
| online scheduling | #14 | #17 | up 1 |
| appointments | #24 | #21 | down 3 |
| online appointment scheduling | #16 | #19 | 0 |
| free appointment booking wordpress plugin | #18 | #21 | 0 |
| wordpress appointment plugin | #18 | #20 | up 3 |
| scheduling website | #19 | #22 | up 1 |
| appointment booking plugin for wordpress | #21 | #23 | 0 |
| wordpress appointment booking plugin | #21 | #23 | 0 |
| free booking system wordpress | #23 | #21 | down 1 |
| appointment system | #24 | #20 | 0 |
| booking your tag | Not in the top 24 | ||
| calendar your tag | Not in the top 24 | ||
65 searches this plugin appeared in over the last 90 days, 17 listed. 48 left out as unrelated or noise (years, numbers, stray words). 2 of its tags aren't in the top 24 for their own search.
What to do about it
- Swap “booking” for “appointments”. “booking” isn't earning its slot: you're not in the first 24 results for its own search. “appointments” sits at #24 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
- One page off on “appointment scheduling”. #11 puts you just past the first ten results, where almost all the clicks stop. The gap to close is small.
- One page off on “scheduling”. #14 puts you just past the first ten results, where almost all the clicks stop. The gap to close is small.
Daily downloads
Since 5 Oct 2022 · 1,491 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 1.2K · peaks are release surges
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
Health trend
Composite health score, snapshotted daily
Update activity
How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.
Release cadence
Occasionally updatedHow often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.
1
releases in the last 12 months
2mo ago
latest release · v1.0.6 · 5 Sep 2026
2
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin · 100% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.
Estimated active installs
The public count shows “1K+”. Our estimate pins where the real number sits.
Crossed into this band 3 months ago and a band this size takes about a year or more to cross, so the real count is still just over 1K.
Install history since 1 Jul 2022
Recent reviews
All reviews on wp.org ↗- ★★★★★ Altairzen Consulting2.8y ago
We appreciate and enjoy this plugin. It’s simple, effective, and user-friendly. Excellent job to the team and keep up the great work!
Read on wp.org ↗ - ★★★★★ cpavaan2.9y ago
muy bueno
Read on wp.org ↗ - ★★★★★ jordiallue3.1y ago
Prático e poderoso!
Read on wp.org ↗ - ★★★★★ tariqahmad0074.1y ago
Awesome plugin for schedule calling
Read on wp.org ↗ - ★★★★★ pratikshan4.3y ago
This plugin really helped me in creating the design i wanted to creat
Read on wp.org ↗ - ★★★★★ nerdlord4.5y ago
I love koalendar! I love that even on the free version you get way more features than the competitor and even when you upgrade the cost is inexpensive.
Read on wp.org ↗ - ★★★★★ antonin79204.7y ago
Magnifique !
Read on wp.org ↗ - ★★★★★ sreum4.8y ago
Simple operation and top results!
Read on wp.org ↗
Security history
via Wordfence IntelligenceThe 1 disclosed vulnerability is patched in the current version (1.0.6). Sites still on an older version should update.
- Patched Medium · 6.4 Koalendar – Events & Appointments Booking Calendar <= 1.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via height Parameter ↗2024-12-13 CVE-2024-11855 Improper Neutralization of Input During Web Page Generation Affects <= 1.0.2 Patched in 1.0.3
Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.
CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.
AI assistants
How it's measured →Whether ChatGPT and Claude name this plugin when asked the category question, and whether the readme gives them something to quote.
This plugin’s searches fall outside the topics measured so far. See the topics measured so far.
Readme readiness
8 of 8 pass · checked 28 Oct 2026Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.
- ✓ Says what it does "Turn your WordPress website into a complete booking and appointment scheduling system, with a Free Forever..."
- ✓ Has a FAQ 8 questions in the FAQ.
- ✓ FAQ asks real questions 8 of 8 read like questions a user would type.
- ✓ Names who it is for Names its audience or use cases ("built for", "perfect for", "designed for").
- ✓ Names what it works with Mentions Stripe, Zapier, Telegram, Google Drive.
- ✓ Headings and lists 13 headings and 7 lists.
- ✓ Enough to quote 6,169 characters of description.
- ✓ Tags match the text All 5 tags appear in the text.
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2026-08-20 900+ → 1K+ up after 127 days in tier
- 2026-04-15 800+ → 900+ up after 52 days in tier
- 2026-02-22 700+ → 800+ up after 31 days in tier
- 2026-01-22 600+ → 700+ up after 721 days in tier
- 2024-02-01 500+ → 600+ up after 219 days in tier
- 2023-06-27 400+ → 500+ up after 153 days in tier
- 2023-01-25 300+ → 400+ up after 113 days in tier
- 2022-10-04 200+ → 300+ up
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).
-
SimplyBook.me – Booking and reservations calendar 30K+ installs · 3.7★ · 3 shared tags B -
Hydra Booking — Appointment Scheduling & Booking Calendar 2K+ installs · 4.1★ · 3 shared tags B -
Online Booking & Scheduling Calendar by vcita 1K+ installs · 3.9★ · 3 shared tags B -
Sign In Scheduling Online Appointment Booking System 700+ installs · 4.1★ · 3 shared tags C -
Easy!Appointments 500+ installs · 4.0★ · 3 shared tags A -
Oryx Bookings: WooCommerce Appointments & Scheduling (100% Free) 100+ installs · 3.6★ · 3 shared tags
Embed this report card
Drop a live Pulse card for Koalendar – Easy Appointment Scheduling & Booking Plugin into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/koalendar-free-booking-widget" width="480" height="300" style="border:0" loading="lazy" title="Koalendar – Easy Appointment Scheduling & Booking Plugin — Plugin Pulse"></iframe> Koalendar – Easy Appointment Scheduling & Booking Plugin: 1K+ active installs, 5.0★ (9 reviews). Plugin Pulse (WP Mayor), as of 2026-11-03. https://plugins.wpmayor.com/plugin/koalendar-free-booking-widget
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