Security Optimizer – The All-In-One… vs Duo Universal (2026)

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

Security Optimizer – The All-In-One…

Security Optimizer – The All-In-One…

4.5(153)

1.0M+ active installs

Free

Updated 4 days ago
View Security Optimizer – The All-In-One…
VS
Duo Universal

Duo Universal

4(1)

2.0K+ active installs

Free

Updated 2 months ago
View Duo Universal

Quick Verdict

As of April 2026, Security Optimizer – The All-In-One… has a higher user rating (4.5/5 from 153 reviews) and leads in active installations (1.0M+ vs 2.0K+). Both are free WordPress plugins. Security Optimizer – The All-In-One… has accumulated 32M+ total downloads while Duo Universal has 16K+.

Detailed Comparison

Rating
4.5/5Security Optimizer – The All-In-One…
Duo Universal4/5
Total Reviews
153Security Optimizer – The All-In-One…
Duo Universal1
Active Installs
1.0M+Security Optimizer – The All-In-One…
Duo Universal2.0K+
Total Downloads
32M+Security Optimizer – The All-In-One…
Duo Universal16K+
Support Resolution
80%Security Optimizer – The All-In-One…
Duo UniversalN/A
Last Updated
4 days agoSecurity Optimizer – The All-In-One…
Duo Universal2 months ago
First Released
2021Security Optimizer – The All-In-One…
Duo Universal2024
Age
5 yearsSecurity Optimizer – The All-In-One…
Duo Universal2 years
WP Requires
4.7+Security Optimizer – The All-In-One…
Duo Universal6.0.0+
PHP Requires
7.0+Security Optimizer – The All-In-One…
Duo Universal7.3.16+
Business Model
FreeSecurity Optimizer – The All-In-One…
Duo UniversalFree
Latest Version
1.6.0Security Optimizer – The All-In-One…
Duo Universal1.2.1

Rating Breakdown

Security Optimizer – The All-In-One…

4.5/5(153 reviews)
5
84%
4
3%
3
3%
2
2%
1
8%

Duo Universal

4/5(1 reviews)
5
0%
4
100%
3
0%
2
0%
1
0%

Recent Reviews

Security Optimizer – The All-In-One… Reviews

by sahara8

Good Security Control

Installed it to improve my site security. The interface is simple, and most features work well. Had to tweak a few settings, but nothing complicated. Overall, pretty useful plugin. tnx devs. T

by Apple.WP-Dev

sgs_whitelist_wp_content custom filter doesn’t work

This plugin seems to be designed for SiteGround hosting only. I am using SiteGround, and the plugin works well except for the file whitelisting feature. I applied the sgs_whitelist_wp_content custom f

by dongermibbs

Horrible. Clashes with everything. Breaches GDPR

This plugin has caused nothing but endless problems. It clashes with Elementor and Papal payment plugins. Of course, all Siteground do is blame the other companies, as if their plugin is perfect. W

Duo Universal Reviews

by ankushdas

A Good Login Plugin for WP

I use Wordfence on my websites for essential security protection. Sure, the 2FA method is available for free, and is plenty good for most.However, I have been fascinated with log-in prompts recently,

Frequently Asked Questions

Is Security Optimizer – The All-In-One… or Duo Universal more popular?
Security Optimizer – The All-In-One… has 1.0M+ active installations while Duo Universal has 2.0K+. Security Optimizer – The All-In-One… is the more widely-used plugin as of April 2026.
Which has better ratings — Security Optimizer – The All-In-One… or Duo Universal?
Security Optimizer – The All-In-One… has a 4.5/5 rating from 153 reviews, while Duo Universal has a 4/5 rating from 1 reviews.
Are Security Optimizer – The All-In-One… and Duo Universal free?
Security Optimizer – The All-In-One… is free and Duo Universal is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Security Optimizer – The All-In-One… or Duo Universal?
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?
Security Optimizer – The All-In-One… was last updated 4 days ago and Duo Universal was last updated 2 months ago.

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