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Easy Appointment Booking & Scheduling System – Webba Booking Calendar

by Webba Appointment Booking · Booking & Events

Free Appointment Booking Plugin 🗓️ Hourly or full-day bookings, booking management, calendar sync, notifications, 5* support = powerful booking syste …

How scoring works →
91 Health · A
Maintenance 100/100
Rating quality 97/100
Support 70/100

91 health vs 67 average across 979 Booking & Events plugins

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.

99 / 100

Excellent listing optimization

Well tuned across the board

Update recency 100/100
WP compatibility 100/100
Rating quality 94/100
Listing tuning 100/100

Daily downloads

Since 2022-10-05 · 1,421 days · wp.org + Plugin Pulse archive

-61% vs prior 30d
59Downloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

3.1K

now · peak 12.1K

3.1K30d downloads · Aug 26

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

Easy Appointment Boo · #4506 you Booking Package · #1889 TrueBooker · #8596 Easy Appointments · #1615

Rating trend

Star average over time · dips mark rough releases

4.9Stars · Aug 26

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.

1.5Kper 1k installs · Aug 26

Release cadence

Actively maintained
from wp.org release tags

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

28

releases in the last 12 months

1mo ago

latest release · v6.4.17

28

tagged releases on record

Recent releases

6.4.17 · 1mo ago6.4.16 · 2mo ago6.4.14 · 2mo ago6.4.13 · 2mo ago6.4.11 · 2mo ago6.4.10 · 3mo ago6.4.8 · 3mo ago6.4.6 · 4mo ago6.4.0 · 5mo ago6.3.12 · 6mo ago6.3.7 · 6mo ago6.3.5 · 7mo ago6.3.4 · 7mo ago6.3.3 · 7mo ago

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 56% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v6.4 56%
v5.1 11%
v5.0 9.7%
v6.2 5.3%
Older / other versions 18%

Estimated active installs

The public count shows “2K+”. Our estimate pins where the real number sits.

tracked estimate
2K–3K ≈2.6K

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

Install history · since 2016-01-31 · 1,440 observations

2KInstalls · Aug 26

Estimated value

What this plugin might earn a year, and what it might sell for. Modeled from public signals; we don't see anyone's books.

medium confidence

Est. annual revenue

≈$3.1K range $790–$12K

Est. acquisition value

≈$6K range $1.2K–$30K

A small install base leaves thin data to model from. A declining trend compresses what a buyer would pay. The range spans more than 10x because wp.org publishes install counts as broad bands, and conversion and price compound on top. Read the midpoint as an order of magnitude, not a valuation.

How we estimate this

Assumptions

  • Free → paid conversion. 0.5%–2% of active installs pay for the pro tier. Typical for freemium WordPress plugins; the real rate varies a lot by product.
  • Annual price per customer. $79–$199 a year, typical for Booking & Events plugins rather than this plugin's own pricing.
  • Acquisition multiple. 1.5x–2.5x annual revenue, the going range for small WordPress-plugin businesses, compressed because the install trend is declining.
  • Install base. 2K–3K active installs, from our install estimate (wp.org only publishes the floor).

Inputs

Active installs
2K–3K
Category
Booking & Events
Pro tier
detected ("Lite" naming, the free tier of a paid product)
Download trend
declining (30d downloads down vs prior 30d)
Reviews
155
Last updated
8 days ago

Revenue is installs × conversion × price; value is revenue × a typical acquisition multiple. Every factor is an assumption band, so the output is a wide range on purpose. If you're buying or selling, treat this as a starting point for due diligence.

Details

Version
6.4.20
Last updated
8d ago
Added
2015-12-16 · 10 yrs old
Requires WP
5.6
Tested up to
7.0.4
Requires PHP
7.4

Recent reviews

All reviews on wp.org ↗
  1. elli15
    2mo ago

    An good plugin that’s constantly evolving; there have been many improvements over the years. The support is amazing – they’re quick to respond and always helpful. They came up with a customised solution for me in quick time.

    Read on wp.org ↗
  2. herrkil
    2mo ago

    I had a problem, and the excellent support team, led by Arif, were helping immediately. He was friendly, helpful, and fast. The plugin is wonderful and has a great many features.

    Read on wp.org ↗
  3. hereco
    2mo ago

    Very good support, whenever I needed help, Arif was there and I got help in a short time. Thank you team!

    Read on wp.org ↗
  4. robnolen
    4mo ago

    Ik heb meerdere plugins voor boekingen geprobeerd, maar deze is top. Hun ondersteuning is ook geweldig en reageerde erg snel. Zeker het proberen waard. 14 dagen niet goed geld terug is ook een erg fijn gevoel.

    Read on wp.org ↗
  5. thewebmachine
    4mo ago

    We tried a few other appointment/booking plugins before trying Webba. Honestly, those others were a waste of our time -or- they truly helped us appreciate the difference with Webba. Hands down the most feature rich and out-of-the-box PROFESSIONAL booking plugin we found. It has everything you could possibly need, especially if you have a more professional business with multiple services and caveats to what you provide to your customers. We ended up upgrading all the way to the Lifetime Pro license even though we didn’t need all the features beyond Plus because we love this plugin so much; the price difference for the extra features (in case we ever need them) is totally worth it. We found a bug early on in our testing of the plugin and their Support staff responded lighting fast and was quick to locate and patch the bug, issuing an updated version within mere days! A truly professional plug-in from a truly professional company! Thanks, Webba. We’re going to love working with you for years to come. 🙂

    Read on wp.org ↗
  6. Jonjg
    7mo ago

    Been playing around with the free version and even though I’m not on the pro version the support has been amazing. I definitely upgrade when I start my business as I know the support will be there. Great job guys!

    Read on wp.org ↗
  7. josepeeee
    7mo ago

    It has its problems as most booking plugins, but support is very efficient and helpfull

    Read on wp.org ↗
  8. revampinglife
    8mo ago

    I tried multiple plugins for bookings but this one has been the best so far. Their support is great as well and was very quick to respond. Definitely worth a try.

    Read on wp.org ↗

Known vulnerabilities

via Wordfence Intelligence

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

  1. 2026-07-01 CVE-2026-27409 Missing Authorization Affects <= 6.4.13 Patched in 6.4.14
  2. 2026-04-30 CVE-2024-13362 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 5.0.57 Patched in 5.1.8
  3. 2025-12-15 CVE-2025-66530 Missing Authorization Affects <= 6.2.1 Patched in 6.2.2
  4. 2025-08-14 CVE-2025-54729 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 6.0.5 Patched in 6.0.6
  5. 2025-07-16 CVE-2025-54040 Missing Authorization Affects <= 5.1.20 Patched in 5.1.22
  6. 2025-07-16 CVE-2025-54036 Cross-Site Request Forgery (CSRF) Affects <= 5.1.20 Patched in 5.1.21
  7. 2024-09-23 CVE-2024-8432 Missing Authorization Affects <= 5.0.48 Patched in 5.0.50
  8. 2023-12-26 CVE-2023-51354 Cross-Site Request Forgery (CSRF) Affects <= 4.5.33 Patched in 5.0
  9. 2023-07-18 CVE-2023-33999 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 4.5.28 Patched in 4.5.32
  10. 2022-04-15 CVE-2021-36847 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 4.2.21 Patched in 4.2.22
  11. 2022-03-04 CVE-2022-4974 Missing Authorization Affects < 4.2.18 Patched in 4.2.18

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.

Behavioral tests

via WP Hive

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

Low memory footprint
Low page-speed impact
Runs on latest PHP + WP
No PHP errors
No JS errors
Activates cleanly
No resource errors
No external HTTP errors
Optimized database use
Frequently updated

Languages

via translate.wordpress.org

Translated into 24 languages, 1 at 90% or more

English (UK) 100%
Korean 50%
Romanian 48%
Russian 36%
Polish 34%
Spanish (Chile) 34%
Dutch 31%
Czech 29%
Spanish (Ecuador) 28%
Spanish (Mexico) 28%
Spanish (Spain) 28%
Ukrainian 28%
Danish 26%
Greek 26%
Slovak 26%
Tagalog 25%
Spanish (Argentina) 22%
Dutch (Belgium) 20%
Swedish 16%
Italian 11%
French (France) 9%
German (Formal) 9%
German 8%
English (Australia) 3%

Growth timeline

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

  1. 2026-05-28 3K+ → 2K+ down after 1 days in tier
  2. 2026-05-27 2K+ → 3K+ up after 2 days in tier
  3. 2026-05-25 3K+ → 2K+ down after 728 days in tier
  4. 2024-05-27 2K+ → 3K+ up after 1 days in tier
  5. 2024-05-26 3K+ → 2K+ down after 1 days in tier
  6. 2024-05-25 2K+ → 3K+ 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).

Compare head to head →

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Preview card ↗

Easy Appointment Booking & Scheduling System – Webba Booking Calendar: 2K+ active installs, 4.9★ (155 reviews). Plugin Pulse (WP Mayor), as of 2026-08-25. https://plugins.wpmayor.com/plugin/webba-booking-lite