Simple Calendar – Google Calendar Plugin
by SimpleCalendar · Booking & Events
Also makes 3 other plugins · 50.4K+ installs across the portfolio →
Add Google Calendar events to your WordPress site in minutes. Beautiful calendar displays. Mobile responsive.
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
B 76/100
no flags
Active installs
50K+
≈55K estimated
Momentum
+103%
downloads vs prior 30d
Biggest opportunity: Swap “events” for “add to calendar”. “events” isn't earning its slot: you're not in the first 24 results for its own search. “add to calendar” sits at #6 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
76 health vs 69 average across 1,839 Booking & Events plugins
Install conversion
How it's measured →1.3%
of downloads still active
At least 50K of 3.9M lifetime downloads are still running, above its category: the median Booking & Events plugin keeps 0.8%, across 942 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 15 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.
Well optimized
Most to gain: Support resolution
Updated 25 days ago
Tested up to WordPress 7.0.8, the current branch or newer
3.8★ over 397 reviews, smoothed to 3.83★
5 of 5 tags set · short description in place
1 of 5 support threads resolved in the last 2 months
To rank higher: Mark more forum threads resolved — the resolved ratio feeds the ranking.
Get the full rank-higher report →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.
42
Momentum
Mixed: one swing, the rest drifting
+0.0
Velocity
places per keyword, 28d
26%
Breadth
of keywords climbing, 28d
+0.1
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 |
|---|---|---|---|
| google calendar your tag | #2 | #2 | 0 |
| simple calendar | #2 | #2 | 0 |
| wp calendar widget your tag | #3 | #3 | 0 |
| website calendar your tag | #3 | #3 | 0 |
| calendar plugin | #3 | #3 | 0 |
| wp calendar your tag | #3 | #3 | 0 |
| calendar | #5 | #6 | up 1 |
| fullcalendar | #4 | #4 | 0 |
| responsive calendar | #3 | #3 | 0 |
| calendar widget | #6 | #7 | 0 |
| content calendar | #6 | #6 | up 2 |
| add to calendar | #6 | #5 | 0 |
| mobile calendar | #4 | #4 | 0 |
| gcal | #7 | #5 | 0 |
| calendars | #8 | #9 | up 1 |
| #20 | #19 | down 4 | |
| wordpress calendar | #7 | #9 | up 1 |
| modern events calendar | #7 | #7 | 0 |
| appointment calendar | #13 | #11 | down 2 |
| wordpress events calendar | #8 | #8 | up 1 |
| events your tag | Not in the top 24 | ||
113 searches this plugin appeared in over the last 90 days, 20 listed. 83 left out as unrelated or noise (years, numbers, stray words). 1 of its tags isn't in the top 24 for their own search.
What to do about it
- Swap “events” for “add to calendar”. “events” isn't earning its slot: you're not in the first 24 results for its own search. “add to calendar” sits at #6 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.
Daily downloads
Since 5 Oct 2022 · 1,489 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peak 107.9K · 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.
15
releases in the last 12 months
25d ago
latest release · v4.3.1 · 7 Oct 2026
163
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 “50K+”. Our estimate pins where the real number sits.
Crossed into this band 17 months ago; the previous band took 2.3 years to cross, which places it about 50% of the way through.
Install history since 7 Dec 2021
Latest updates
via wp.org changelogRecent releases and news for this plugin
- — Version 4.0.7 Fix: Removed unnecessary Google API key/OAuth requirement when creating a Grouped Calendar. 4.0.7
- — Version 4.0.6 Fix: Optimize admin & fronend performance, throttle OAuth token checks, and reduce redundant API calls. 4.0.6
- — Version 4.0.5 Fix: Fixed a PHP 8.3 ValueError by replacing sprintf() with string concatenation to safely handle literal percent signs in translations. 4.0.5
- — Version 4.0.4 Fix: Fixed text domain loading by hooking into init. Dev: Added validation before unserialize() to prevent errors during OAuth failures. 4.0.4
- — Version 4.0.3 Dev: Ensured compatibility with WordPress 7.0. Fix: Trimmed historical changelog entries to resolve WordPress.org length warnings. Dev: Add an [if-event] conditional template tag Dev: Allow the url argument in the [link] 4.0.3
- — Version 4.0.2 Dev: Added a new connect page in admin enhancing the onboarding experience. Dev: Redesigned settings and add-ons pages with a modern layout. 4.0.2
Security history
via Wordfence IntelligenceAll 7 disclosed vulnerabilities are patched in the current version (4.3.1). Sites still on an older version should update.
- Patched Medium · 5.3 Google Calendar Events <= 3.5.9 - Unauthenticated Insecure Direct Object Reference ↗2025-12-18 CVE-2025-68979 Authorization Bypass Through User-Controlled Key Affects <= 3.5.9 Patched in 3.6.0
- Patched Medium · 6.1 Simple Calendar – Google Calendar Plugin <= 3.4.2 - Reflected Cross-Site Scripting ↗2024-09-24 CVE-2024-8549 Improper Neutralization of Input During Web Page Generation Affects <= 3.4.2 Patched in 3.4.3
- Patched Medium · 6.4 Google Calendar Events <= 3.2.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via shortcode ↗2023-11-28 CVE-2023-49151 Improper Neutralization of Input During Web Page Generation Affects <= 3.2.7 Patched in 3.2.8
- 2023-10-20 Cross-Site Request Forgery Affects < 3.2.5 Patched in 3.2.5
- Patched Medium · 4.3 Google Calendar Events <= 3.2.5 - Cross-Site Request Forgery via bulk_actions ↗
- Patched Medium · 4.3 Simple Calendar <= 3.1.42 - Cross-Site Request Forgery to Transient Cache Clearing ↗2023-05-11 Cross-Site Request Forgery Affects <= 3.1.42 Patched in 3.1.43
- Patched Medium · 6.1 Simple Calendar – Google Calendar Plugin < 2.0.4 - Reflected Cross-Site Scripting ↗2014-10-08 CVE-2014-7138 Improper Neutralization of Input During Web Page Generation Affects < 2.0.4 Patched in 2.0.4
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
Languages
via translate.wordpress.orgTranslated into 130 languages, 1 at 90% or more
Plus 106 more locales with partial translations.
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 28 Oct 2026Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.
- ✓ Says what it does "Add Google Calendar events to your WordPress site in minutes. Beautiful calendar displays. Mobile responsive."
- ✓ Has a FAQ 3 questions in the FAQ.
- ✓ FAQ asks real questions 3 of 3 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 3 lists.
- ✓ Enough to quote 2,559 characters of description.
- ! Tags match the text Only 2 of 5 tags appear in the text ("Website calendar", "wp calendar", "wp calendar widget" missing).
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2025-06-08 60K+ → 50K+ down after 857 days in tier
- 2023-02-02 70K+ → 60K+ down after 2 days in tier
- 2023-01-31 60K+ → 70K+ up after 2 days in tier
- 2023-01-29 70K+ → 60K+ down after 815 days in tier
- 2020-11-05 80K+ → 70K+ down after 177 days in tier
- 2020-05-12 90K+ → 80K+ down after 742 days in tier
- 2018-05-01 80K+ → 90K+ up after 360 days in tier
- 2017-05-06 70K+ → 80K+ up after 415 days in tier
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).
-
Booking Manager – Sync WP Booking Calendar – Import Events, Export Bookings to ICS Calendar 5K+ installs · 3.9★ · 2 shared tags B -
Events Calendar for Google 2K+ installs · 4.1★ · 2 shared tags B -
Event Calendar – Calendar 2K+ installs · 4.6★ · 2 shared tags B -
Tockify Events Calendar 2K+ installs · 4.2★ · 2 shared tags A -
Simple Google Calendar Outlook Events Widget 1K+ installs · 4.3★ · 2 shared tags A -
Hydrogen Calendar Embeds 1K+ installs · 4.1★ · 2 shared tags A
Embed this report card
Drop a live Pulse card for Simple Calendar – Google Calendar Plugin into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/google-calendar-events" width="480" height="300" style="border:0" loading="lazy" title="Simple Calendar – Google Calendar Plugin — Plugin Pulse"></iframe> Simple Calendar – Google Calendar Plugin: 50K+ active installs, 3.8★ (397 reviews). Plugin Pulse (WP Mayor), as of 2026-11-01. https://plugins.wpmayor.com/plugin/google-calendar-events
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