Two Factor Authentication vs Duo Universal (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Two Factor Authentication
20K+ active installs
Free
Quick Verdict
As of April 2026, Two Factor Authentication has a higher user rating (4.4/5 from 77 reviews) and leads in active installations (20K+ vs 2.0K+). Both are free WordPress plugins. Two Factor Authentication has accumulated 881K+ total downloads while Duo Universal has 16K+.
Detailed Comparison
| Metric | Two Factor Authentication | Duo Universal | |
|---|---|---|---|
| Rating | 4.4/5 | ◄ | 4/5 |
| Total Reviews | 77 | ◄ | 1 |
| Active Installs | 20K+ | ◄ | 2.0K+ |
| Total Downloads | 881K+ | ◄ | 16K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 week ago | ◄ | 2 months ago |
| First Released | 2015 | 2024 | |
| Age | 11 years | 2 years | |
| WP Requires | 3.4+ | 6.0.0+ | |
| PHP Requires | 5.6+ | 7.3.16+ | |
| Business Model | Free | Free | |
| Latest Version | 1.16.0 | 1.2.1 |
Rating Breakdown
Two Factor Authentication
Duo Universal
Download Trends
Over the past 30 days, Two Factor Authentication averaged approximately 109 daily downloads while Duo Universal averaged 24.
Recent Reviews
Two Factor Authentication Reviews
Nice plugin, Excellent plugin, works greatly like a charm.
Excellent plugin, works greatly like a charm. This topic was modified 2 years, 2 months ago by Emilio Lejit.
This plugin does not support OTP via email.
Please look elsewhere if you want a plugin that sends one-time passcodes via email. I originally purchased this plugin to send a one-time password to my class subscribers via email whenever they atte
Just works
Perfect, simple solution for Google Authenticator
Duo Universal Reviews
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,
More Two Factor Worth Comparing
Top alternatives in the same category as Two Factor Authentication and Duo Universal
Easily improve site security with WordPress Hardening, Two-Factor Authentication (2FA), Login Protection, Vulnerability Detection and SSL certificate.
Enable one-click login with this WordPress Two-Factor Authentication (2FA) plugin, utilizing email for added security.
Easily add Duo Security two-factor authentication to your WordPress website. Enable two-factor authentication for your admins and/or users.
Adds an extra layer of security to your Wordpress Account. Same as Google 2-step verification.
WebAuthn authentication provider for Two Factor plugin.
Frequently Asked Questions
Is Two Factor Authentication or Duo Universal more popular?
Which has better ratings — Two Factor Authentication or Duo Universal?
Are Two Factor Authentication and Duo Universal free?
Which plugin has better support — Two Factor Authentication or Duo Universal?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.