ICS Calendar

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 · 58% 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 declining trend compresses what a buyer would pay.

1. ★★★★★ frankdoherty

   5mo ago

   Finally I found this product. The app is simple to setup and the support is next-level! You don’t need to look any further.

   Read on wp.org ↗
2. ★★★★★ Rico

   6mo ago

   Easy google calendar customization.And support was also VERY helpful!

   Read on wp.org ↗
3. ★★★★★ lwith

   7mo ago

   no limits for entries!no extra event management necessary, I just integrated a google calendar

   Read on wp.org ↗
4. ★★★★★ sergibosch

   9mo ago

   Once set up correctly, it works smoothly. Initially, I was making updates to my iOS calendar and not seeing them instantly so that was stressing me out. I installed a caching plugin (Purge SG Cache by Siteground) and that took care of the instant refresh issue. Now I regularly update my iOS calendar and the updates appear without having to purge the cache. I still use the caching plugin at other times though and it’s helpful to have it.

   Read on wp.org ↗
5. ★★★★★ jerrystewart99

   10mo ago

   Lovely functionality and appearance straight out of the box. I wanted to tweak the UX to have 2x calendars showing with interleaved events.. it just handles it perfectly. Many thanks for an excellent plugin.

   Read on wp.org ↗
6. ★★★★★ Scott Kingsley Clark

   12mo ago

   Excellent plugin and it just works. Was able to plug in an Outlook Office 365 ics file and it just works. That’s it, the plugin just works! Thanks for sharing with us.

   Read on wp.org ↗
7. ★★★★★ cede007

   1.5y ago

   Very helpful plugin in conjunction with the events manager. Very fast, friendly and helpful support from the developer. It couldn’t be better!

   Read on wp.org ↗
8. ★★★★★ radicoos

   1.8y ago

   I have been using the ICS Calendar plugin for about two years now, and it has been an invaluable asset to my membership site. Since implementing the plugin, member retention and engagement have significantly increased, as I can display all upcoming events in one place, keeping members connected and engaged. The plugin is incredibly powerful, flexible, and well-maintained with regular updates. I can’t say enough good things about the developer. As others have mentioned, his support is outstanding, he goes above and beyond to troubleshoot and resolve issues, even when it’s clear the problem is caused by conflicts from other plugins. Highly, highly recommended

   Read on wp.org ↗

Recent releases and news for this plugin

1. — Version 12.1.2 Week view: Fixed issue that prevented events from displaying when displaying the current week only or limiting the display to fewer than 8 days. CSS: Changed z-index on event hover to avoid conflict with Modern Events Ca 12.1.2
2. — Version 12.1.1.1 AJAX: Adjusted minimum refresh time from 5 minutes to 2 minutes, and added a 10-second delay, to account for any lag in clearing the cache. (Actual refresh rate is based on the Transient (cache) expiration setting.) Prin 12.1.1.1
3. — Version 12.1.1 Admin: Fixed issue of a large number of irrelevant, version-related admin notices appearing on initial installation. Modified r34ics_admin_full_access() function, adding the $multisite_check parameter. This allows for co 12.1.1
4. — Version 12.1.0 Script loading: Re-introduced conditional enqueuing of static assets (JavaScript and CSS files), which had been removed in an earlier update due to inconsistent behavior. This new method has been tested against the 40 mo 12.1.0
5. — Version 12.0.10 Event descriptions: Added eventdesclinkfix shortcode parameter. Changed r34ics_maybe_make_clickable() function so that, when eventdesclinkfix is used, it will return the text string as-is if it contains any HTML. The ass 12.0.10
6. — Version 12.0.9.2 Changed id attribute on AJAX container (appended -ajax ) so it isn’t redundant with the id of the calendar itself after loading. Note: Due the fact that its single change would serve no useful purpose on its own, version 12.0.9.2

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

1. High · 7.2 ICS Calendar <= 12.1.1 - Unauthenticated Stored Cross-Site Scripting ↗
   2026-07-10 CVE-2026-59516 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 12.1.1 Patched in 12.1.1.1
2. Medium · 6.1 ICS Calendar <= 12.0.9 - Reflected Cross-Site Scripting via 'htmltagtitle' Parameter ↗
   2026-07-09 CVE-2026-9838 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 12.0.9 Patched in 12.0.9.2
3. High · 8.8 ICS Calendar <= 10.12.0.2 - Authenticated (Contributor+) Arbitrary File Read and Server-Side Request Forgery ↗
   2023-10-26 CVE-2023-46784 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Affects <= 10.12.0.2 Patched in 10.12.0.3
4. Medium · 6.5 ICS Calendar <= 10.12.0.1 - Authenticated(Contributor+) Directory Traversal via _url_get_contents ↗
   2023-10-23 CVE-2023-46784 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Affects < 10.12.0.2 Patched in 10.12.0.2

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

Translated into 14 languages, 0 at 90% or more

Growth timeline

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

1. 2022-10-12 9K+ → 10K+ 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).

• Hydrogen Calendar Embeds 1K+ installs · 4.0★ · 3 shared tags B
• The Events Calendar 600K+ installs · 4.2★ · 2 shared tags A
• Events Manager – Calendar, Bookings, Tickets, and more! 60K+ installs · 4.2★ · 2 shared tags B
• WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce 20K+ installs · 4.0★ · 2 shared tags A
• Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce 10K+ installs · 4.6★ · 2 shared tags A
• The Events Calendar Shortcode & Block 10K+ installs · 4.6★ · 2 shared tags A

Embed this report card

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

ICS Calendar: 10K+ active installs, 4.9★ (72 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/ics-calendar