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PHP Compatibility Checker vs Sullivan Compatibility Plugin (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

PHP Compatibility Checker

PHP Compatibility Checker

2.7(131)

200K+ active installs

Free

Updated 2 years ago
View PHP Compatibility Checker
VS
Sullivan Compatibility Plugin

Sullivan Compatibility Plugin

0(0)

100 active installs

Free

Updated 8 years ago
View Sullivan Compatibility Plugin

Quick Verdict

As of April 2026, PHP Compatibility Checker has a higher user rating (2.7/5 from 131 reviews) and leads in active installations (200K+ vs 100). Both are free WordPress plugins. PHP Compatibility Checker has accumulated 3.0M+ total downloads while Sullivan Compatibility Plugin has 5.6K+.

Detailed Comparison

Rating
2.7/5PHP Compatibility Checker
◄
Sullivan Compatibility PluginN/A
Total Reviews
131PHP Compatibility Checker
◄
Sullivan Compatibility Plugin0
Active Installs
200K+PHP Compatibility Checker
◄
Sullivan Compatibility Plugin100
Total Downloads
3.0M+PHP Compatibility Checker
◄
Sullivan Compatibility Plugin5.6K+
Support Resolution
0%PHP Compatibility Checker
Sullivan Compatibility PluginN/A
Last Updated
2 years agoPHP Compatibility Checker
◄
Sullivan Compatibility Plugin8 years ago
First Released
2016PHP Compatibility Checker
Sullivan Compatibility Plugin2018
Age
10 yearsPHP Compatibility Checker
Sullivan Compatibility Plugin8 years
WP Requires
5.6+PHP Compatibility Checker
Sullivan Compatibility Plugin4.4+
PHP Requires
5.6+PHP Compatibility Checker
Sullivan Compatibility Plugin5.2.4+
Business Model
FreePHP Compatibility Checker
Sullivan Compatibility PluginFree
Latest Version
1.6.3PHP Compatibility Checker
Sullivan Compatibility Plugin1.0.4

Rating Breakdown

PHP Compatibility Checker

2.7/5(131 reviews)
5
35%
4
5%
3
2%
2
8%
1
50%

Sullivan Compatibility Plugin

0/5(0 reviews)
5
0%
4
0%
3
0%
2
0%
1
0%

Recent Reviews

PHP Compatibility Checker Reviews

by manare

Con WP5.1 y PHP7.4, falla

Ell plugin no muestra versiones ni escanea

by cweb

Why is this recommended by WordPress?

Over the years, I have tried to be careful to not install programs that are not kept up to date. Yet, WordPress suggest that we install this outdated app that has not been updated for over 2 years. Ma

by aodigitalau

Ironically not compatible with the latest PHP

Either update the plugin or take it down.

Sullivan Compatibility Plugin Reviews

No reviews yet

Frequently Asked Questions

Is PHP Compatibility Checker or Sullivan Compatibility Plugin more popular?
PHP Compatibility Checker has 200K+ active installations while Sullivan Compatibility Plugin has 100. PHP Compatibility Checker is the more widely-used plugin as of April 2026.
Which has better ratings — PHP Compatibility Checker or Sullivan Compatibility Plugin?
PHP Compatibility Checker has a 2.7/5 rating from 131 reviews, while Sullivan Compatibility Plugin has a 0/5 rating from 0 reviews.
Are PHP Compatibility Checker and Sullivan Compatibility Plugin free?
PHP Compatibility Checker is free and Sullivan Compatibility Plugin is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — PHP Compatibility Checker or Sullivan Compatibility Plugin?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
PHP Compatibility Checker was last updated 2 years ago and Sullivan Compatibility Plugin was last updated 8 years ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.