Koalendar – Easy Appointment Scheduling & Booking Plugin

76 Quality Score

Active Installs

14/30

At 1,000 active installs, it is a very small player compared to category leaders like The Events Calendar, so its usage base is limited and indicative of a niche audience.

Update Freshness

25/25

A January 2026 release and confirmed compatibility with WordPress 6.9.4 suggest the developer is actively shipping updates, which is a strong signal of reliability.

User Rating

15/15

The 100/100 rating from 9 reviewers is perfect, but the small sample size means it is too early to call the plugin objectively polished at scale.

Support Health

8/15

With zero support threads opened, there is no public track record on how responsive the developer is when real users hit problems.

WP Compatibility

15/15

Requiring only WordPress 2.5 and not specifying a PHP version means it will run almost anywhere, giving it excellent backward compatibility though that openness also hints at minimal native testing breadth.

Scores higher than 46% of indexed plugins

About

Turn your WordPress website into a complete booking and appointment scheduling system, with a Free Forever plan

Active Installs 1k+

Rating ★★★★★ 5/5

Last Updated 2026-09-05 2:34pm GMT

Requires WordPress 2.5+

Tested Up To 7.1

Security History

1 known vulnerability, all patched

1 Medium

Most recent: December 13, 2024

View details ▸

What It Does

Koalendar adds a fully hosted booking widget to your WordPress site, letting visitors schedule appointments without leaving the page. Bookings, availability, and notifications are managed through Koalendar's external dashboard, so it works as a lightweight front-end for a SaaS booking system rather than a fully native scheduling engine.

Who It's For

It is best for solo service providers, freelancers, tutors, and small studios who need a quick, no-setup appointment page and are comfortable with bookings living inside a third-party platform. It suits businesses whose scheduling workflow is simple, such as one-on-one consultations, classes, or short sessions, and who want a free tier to start.

Who Should Skip It

Skip this plugin if you run a multi-staff operation with complex availability rules, require deep WordPress data ownership, or need native integrations with WooCommerce, payments, or CRM tools, since Koalendar is essentially an iframe wrapper around a hosted booking service.

The Bottom Line

Koalendar is a tidy, actively maintained booking widget best suited to simple, solo scheduling needs, and its free tier is a genuine plus. The thin public footprint, zero support history, and hosted-data model mean it is a convenience play rather than a full WordPress-native solution. Worth trying for small operations, but larger or compliance-heavy businesses will outgrow it quickly.

Related Plugins

The Events Calendar 90/100

Pick this if you primarily need an event listing calendar with ticketing rather than one-to-one appointment booking.

Appointment Booking Plugin – LatePoint 85/100

Choose LatePoint for a fully native, staff-aware WordPress booking system with WooCommerce and payment integration out of the box.

Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin 84/100

Choose Simply Schedule Appointments if you want native WordPress appointments with team, group, and round-robin scheduling without leaving the dashboard.

Booking for Appointments and Events Calendar – Amelia 83/100

Choose Amelia for a premium, all-in-one booking experience with SMS, payments, and a polished native admin interface.

Online Scheduling and Appointment Booking System – Bookly 82/100

Choose Bookly if you need a mature, heavily extended booking plugin with a large library of paid add-ons.