Is Simple Calendar free?

Yes, Simple Calendar is free to use. It is available as a free plugin on WordPress.org.

How many websites use Simple Calendar?

Simple Calendar has 400 active installations as tracked by WordPress.org.

What are the best Simple Calendar alternatives?

Popular alternatives to Simple Calendar include Advanced Custom Fields (ACF®), Advanced Custom Fields: Extended, ACF Content Analysis for Yoast SEO. You can compare them side-by-side on our comparison pages.

Does Simple Calendar work with the latest WordPress?

Simple Calendar has been tested up to WordPress 6.3.8. It requires WordPress 4.0+ and PHP false+.

Simple Calendar – Advanced Custom Fields — Reviews, Rating & Alternatives (2026)

Name: Simple Calendar – Advanced Custom Fields
Rating: 5 (1 reviews)
Author: SimpleCalendar

As of April 2026, Simple Calendar is a WordPress acf plugin with 400 active installations and a 5/5 rating from 1 reviews. It has been downloaded 8.6K+ times in total. Requires WordPress 4.0+ and PHP false+. Available on WordPress.org since 2015. Last updated 2 years ago — may have compatibility concerns. Top alternative: Advanced Custom Fields (ACF®).

5/51 reviews

400active installs

8.6K+total downloads

11 yearssince 2015

Overview

Add a Simple Calendar field to Advanced Customs Fields (ACF).

The field will print the corresponding calendar chosen among those available using ACF. You can use then Advanced Custom Field template functions to print the corresponding field in your templates, such as the_field( 'your_simple_calendar_field' );.

To use this add-on you need both Simple Calendar and Advanced Custom Fields installed and activated. It is compatible with both ACF 4 and 5 or ACF Pro and requires Simple Calendar 3.0 or higher.

Read full description on WordPress.org