PluginSift

WP OPcache vs Extensions for PressBooks (2026)

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

WP OPcache

WP OPcache

4.8(20)

10K+ active installs

Free

Updated 1 year ago
View WP OPcache
VS
Extensions for PressBooks

Extensions for PressBooks

0(0)

0 active installs

Free

Updated 6 years ago
View Extensions for PressBooks

Quick Verdict

As of April 2026, WP OPcache has a higher user rating (4.8/5 from 20 reviews) and leads in active installations (10K+ vs 0). Both are free WordPress plugins. WP OPcache has accumulated 222K+ total downloads while Extensions for PressBooks has 1.1K+.

Detailed Comparison

Rating
4.8/5WP OPcache
◄
Extensions for PressBooksN/A
Total Reviews
20WP OPcache
◄
Extensions for PressBooks0
Active Installs
10K+WP OPcache
◄
Extensions for PressBooks0
Total Downloads
222K+WP OPcache
◄
Extensions for PressBooks1.1K+
Support Resolution
0%WP OPcache
Extensions for PressBooksN/A
Last Updated
1 year agoWP OPcache
◄
Extensions for PressBooks6 years ago
First Released
2017WP OPcache
Extensions for PressBooks2020
Age
9 yearsWP OPcache
Extensions for PressBooks6 years
WP Requires
6.0+WP OPcache
Extensions for PressBooks3.0.1+
PHP Requires
8.1+WP OPcache
Extensions for PressBooks5.6+
Business Model
FreeWP OPcache
Extensions for PressBooksFree
Latest Version
4.2.3WP OPcache
Extensions for PressBooks1.2.8

Rating Breakdown

WP OPcache

4.8/5(20 reviews)
5
95%
4
0%
3
0%
2
0%
1
5%

Extensions for PressBooks

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

Recent Reviews

WP OPcache Reviews

by frayer69

WORKS 100% BUT NEED UPDATE

First, thank you! Second, please update it!!!

by onico0

Bast OPCache Manager for WordPress

Thanks and keep going please! 🙂

by nmxde

Provides useful insights

Good way to find out how well your opcache setup works

Extensions for PressBooks Reviews

No reviews yet

Frequently Asked Questions

Is WP OPcache or Extensions for PressBooks more popular?
WP OPcache has 10K+ active installations while Extensions for PressBooks has 0. WP OPcache is the more widely-used plugin as of April 2026.
Which has better ratings — WP OPcache or Extensions for PressBooks?
WP OPcache has a 4.8/5 rating from 20 reviews, while Extensions for PressBooks has a 0/5 rating from 0 reviews.
Are WP OPcache and Extensions for PressBooks free?
WP OPcache is free and Extensions for PressBooks is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — WP OPcache or Extensions for PressBooks?
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?
WP OPcache was last updated 1 year ago and Extensions for PressBooks was last updated 6 years ago.

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