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Simple Calendar – Google Calendar Plugin v4.2.0

Add Google Calendar events to your WordPress site in minutes. Beautiful calendar displays. Mobile responsive.

Plugin Auditor is an independent service and is not affiliated with, endorsed by, or sponsored by Simple Calendar or its developer. Disclaimer.

  • Audit coverage Not yet audited newest version pending
  • On Plugin Auditor since Sep 7, 2026
  • Last audited Sep 7, 2026

Compatibility & requirements

The PHP and WordPress versions this plugin needs, and how current its version support is.

  • Requires PHP 8.1+
  • Requires WordPress 4.2+
  • Tested up to WP 7.0 WP 7.1.3 is current

Audit scores by category

125 checks

How this plugin scores across the six areas we audit, from security to accessibility.

  • 99 Passed
  • 15 Warnings
  • 11 Failed
Security 65/100
Needs Improvement

24 of 37 checks passed.

Code Quality 93/100
Excellent

57 of 61 checks passed.

Performance 67/100
Needs Improvement

8 of 12 checks passed.

Compatibility 67/100
Needs Improvement

4 of 6 checks passed.

Privacy 100/100
Excellent

3 of 3 checks passed.

Accessibility 50/100
Needs Improvement

3 of 6 checks passed.

Code footprint

How much code ships in this plugin, and the file types that make it up.

View in detail

ZIP file size

3.5 MB

9.5 MB unzipped

Total files

1,683

across all file types

Lines of PHP

141,663

in 1,570 files Large

File types

  • PHP
  • OTHER
  • SVG

Top issues

The most important findings from the latest audit, ordered by severity.

  • 5 Critical
  • 62 High
  • 268 Medium
  • 41 Low

This is a preview of notable findings. Full file-level results, line numbers and code context are in the scan.

View full report

How scores changed across versions

Across 30 audited versions of Simple Calendar – Google Calendar Plugin, Code Quality improved the most (+1). The largest regression was in Security (-3). The codebase grew 13% in size.

Audited 3.4.0 → 4.1.0 · 30 versions

0 50 100 3.4.0 3.5.0 3.6.0 4.1.0

How issues changed across versions

Findings by severity for each audited version, so you can see which issues were fixed over time.

0 300 600 3.4.0 3.5.0 3.6.0 4.1.0

Download momentum

How fast this plugin is being installed lately, and whether that pace is rising or slowing.

Last 7 days

3,902

downloads

Today

259

downloads

Week over week

−83%

vs previous week

Month over month

0%

vs previous month

Download trend: Steady. Abandonment risk: None.

Version intelligence

100% of installs run the current version

  • Other
  • v3.1
  • v3.4
  • v3.5
  • v3.6
  • v4.0
  • v4.1

Ratings

397 ratings on WordPress.org

  • 5 252
  • 4 27
  • 3 14
  • 2 14
  • 1 90

Support: 2 / 4 threads resolved in the last two months

Maintenance & history

How actively this plugin is kept up, from its last update to its release history.

Last updated

This month

Aug 3, 2026

Actively maintained

Release cadence

~ every 7 days

average between releases

Total releases

158

since Jul 2010 · 16 yrs

Contributors & developers

The people credited with building and maintaining this plugin.

Running Simple Calendar in Your Site?

Our latest audit of Simple Calendar v4.2.0 flagged 376 issues. Scan your own copy to see each one with its exact file, line number, and a recommended fix.

Simple Calendar and its trademarks are used only to identify the plugin analyzed and remain the property of their owners. This is an independent Plugin Auditor audit, not affiliated with, sponsored by, or endorsed by the plugin's developer. Metadata may come from WordPress.org; scores, findings, classifications, and visualizations are independently generated by Plugin Auditor. Full disclaimer.