ICS Calendar
by Room 34 Creative Services, LLC · Booking & Events
Also makes 9 other plugins · 13.4K+ installs across the portfolio →
Add the calendar you already use to any WordPress site! Google Calendar, Microsoft 365, iCloud and more… no API keys or complicated setup required.
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 91/100
no flags
Active installs
10K+
≈19K estimated
Momentum
+2%
downloads vs prior 30d
Biggest opportunity: Swap “events”, “google” and “microsoft” for “airbnb”, “google calendar” and “add to calendar”. “events” isn't earning its slot: you're not in the first 24 results for its own search. “airbnb” sits at #4 untagged, close enough for a declared tag to move it up. “google” isn't earning its slot: you're not in the first 24 results for its own search. “google calendar” sits at #6 untagged, close enough for a declared tag to move it up. “microsoft” isn't earning its slot: it only gets you to #16. “add to calendar” sits at #7 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
91 health vs 69 average across 1,838 Booking & Events plugins
Install conversion
How it's measured →0.5%
of downloads still active
At least 10K of 2M lifetime downloads are still running, below its category: the median Booking & Events plugin keeps 0.8%, across 940 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 51 releases 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
Well tuned across the board
Updated 2 days ago
Tested up to WordPress 7.1.4, the current branch or newer
4.9★ over 72 reviews, smoothed to 4.57★
5 of 5 tags set · short description in place
1 of 1 support threads resolved in the last 2 months
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.
29
Momentum
Losing ground
-1.6
Velocity
places per keyword, 28d
8%
Breadth
of keywords climbing, 28d
-1.3
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 |
|---|---|---|---|
| ics | #1 | #1 | 0 |
| icloud your tag | #2 | #2 | down 1 |
| icalendar | #2 | #1 | down 1 |
| jquery calendar | #3 | #3 | 0 |
| ajax calendar | #4 | #4 | 0 |
| airbnb | #4 | #4 | 0 |
| google calendar | #6 | #5 | 0 |
| calendar | #7 | #7 | 0 |
| outlook your tag | #9 | #6 | — |
| microsoft 365 | #8 | #7 | 0 |
| already | #9 | #11 | up 1 |
| content calendar | #7 | #7 | down 1 |
| add to calendar | #7 | #6 | 0 |
| wordpress calendar | #5 | #5 | down 1 |
| simple calendar | #8 | #7 | down 3 |
| microsoft your tag | #16 | #15 | up 6 |
| website calendar | #6 | #5 | up 1 |
| wp calendar | #7 | #7 | up 1 |
| outlook calendar | #7 | #5 | — |
| calendars | #14 | #11 | down 7 |
| events your tag | Not in the top 24 | ||
| google your tag | Not in the top 24 | ||
89 searches this plugin appeared in over the last 90 days, 20 listed. 60 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 “events”, “google” and “microsoft” for “airbnb”, “google calendar” and “add to calendar”. “events” isn't earning its slot: you're not in the first 24 results for its own search. “airbnb” sits at #4 untagged, close enough for a declared tag to move it up. “google” isn't earning its slot: you're not in the first 24 results for its own search. “google calendar” sits at #6 untagged, close enough for a declared tag to move it up. “microsoft” isn't earning its slot: it only gets you to #16. “add to calendar” sits at #7 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 “microsoft”. #16 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 · 1,488 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 75.6K · 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
Rating trend
Star average over time · dips mark rough releases
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
Actively maintainedHow often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.
51
releases in the last 12 months
3d ago
latest release · v12.3.0 · 28 Oct 2026
579
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin. 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 “10K+”. Our estimate pins where the real number sits.
Crossed into this band 4.1 years ago; a band this size takes about a year or more to cross, which places it about 90% of the way through.
Install history since 14 Nov 2019
Recent reviews
All reviews on wp.org ↗- ★★★★★ frankdoherty7mo 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 ↗ - ★★★★★ Rico8mo ago
Easy google calendar customization.And support was also VERY helpful!
Read on wp.org ↗ - ★★★★★ lwith9mo ago
no limits for entries!no extra event management necessary, I just integrated a google calendar
Read on wp.org ↗ - ★★★★★ sergibosch11mo 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 ↗ - ★★★★★ jerrystewart9912mo 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 ↗ - ★★★★★ Scott Kingsley Clark1.1y 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 ↗ - ★★★★★ cede0071.7y 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 ↗ - ★★★★★ radicoos2.0y 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 ↗
Latest updates
via wp.org changelogRecent releases and news for this plugin
- — 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
- — 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
- — 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
- — 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
- — 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
- — 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
Security history
via Wordfence IntelligenceAll 4 disclosed vulnerabilities are patched in the current version (12.3.0). Sites still on an older version should update.
- 2026-07-10 CVE-2026-59516 Improper Neutralization of Input During Web Page Generation Affects <= 12.1.1 Patched in 12.1.1.1
- Patched 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 Affects <= 12.0.9 Patched in 12.0.9.2
- Patched 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 Affects <= 10.12.0.2 Patched in 10.12.0.3
- Patched 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 Affects < 10.12.0.2 Patched in 10.12.0.2
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 HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 7.0.1
Languages
via translate.wordpress.orgTranslated into 14 languages, 0 at 90% or more
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.
Not measured yet for this plugin’s topics. Its tracked searches are not among the measured topics. See the topics measured so far.
Readme readiness
5 of 8 pass · checked 26 Oct 2026Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.
- ✓ Says what it does "Add the calendar you already use to any WordPress site! Google Calendar, Microsoft 365, iCloud and more… no..."
- ✓ Has a FAQ 6 questions in the FAQ.
- ✓ FAQ asks real questions 6 of 6 read like questions a user would type.
- ! Names who it is for Never says who the plugin is for or what they use it for.
- ! Names what it works with Names no plugin, service or platform it works with.
- ! Headings and lists 3 headings and 0 lists; assistants quote headed sections and bullet lists, not paragraphs.
- ✓ Enough to quote 1,943 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
- 2022-10-12 9K+ → 10K+ up after 11 days in tier
- 2022-10-01 7K+ → 9K+ up after 236 days in tier
- 2022-02-07 6K+ → 7K+ up after 109 days in tier
- 2021-10-21 4K+ → 6K+ up after 243 days in tier
- 2021-02-20 3K+ → 4K+ up after 194 days in tier
- 2020-08-10 2K+ → 3K+ up after 211 days in tier
- 2020-01-12 1K+ → 2K+ 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).
-
WP Google Analytics Events – No-Code Custom Event Tracking for Google Analytics 5K+ installs · 4.4★ · 2 shared tags C - T The Events Calendar Outlook Import Fix 200+ installs · 4.0★ · 2 shared tags D
-
Site Kit by Google – Analytics, Search Console, AdSense, Speed 5M+ installs · 4.2★ · 1 shared tag A -
WP Mail SMTP by WPForms – SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More 4M+ installs · 4.8★ · 1 shared tag A -
Google for WooCommerce 800K+ installs · 2.8★ · 1 shared tag C -
The Events Calendar 600K+ installs · 4.2★ · 1 shared tag A
Embed this report card
Drop a live Pulse card for ICS Calendar into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/ics-calendar" width="480" height="300" style="border:0" loading="lazy" title="ICS Calendar — Plugin Pulse"></iframe> ICS Calendar: 10K+ active installs, 4.9★ (72 reviews). Plugin Pulse (WP Mayor), as of 2026-10-31. https://plugins.wpmayor.com/plugin/ics-calendar
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