Two Factor Authentication vs Duo Two-Factor Authentication (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
Duo Two-Factor Authentication
3.0K+ 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 3.0K+). Both are free WordPress plugins. Two Factor Authentication has accumulated 881K+ total downloads while Duo Two-Factor Authentication has 186K+.
Detailed Comparison
| Metric | Two Factor Authentication | Duo Two-Factor Authentication | |
|---|---|---|---|
| Rating | 4.4/5 | ◄ | 3.7/5 |
| Total Reviews | 77 | ◄ | 39 |
| Active Installs | 20K+ | ◄ | 3.0K+ |
| Total Downloads | 881K+ | ◄ | 186K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 week ago | ◄ | 10 months ago |
| First Released | 2015 | 2011 | |
| Age | 11 years | 15 years | |
| WP Requires | 3.4+ | 4.1+ | |
| PHP Requires | 5.6+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 1.16.0 | 2.5.7 |
Rating Breakdown
Two Factor Authentication
Duo Two-Factor Authentication
Download Trends
Over the past 30 days, Two Factor Authentication averaged approximately 109 daily downloads while Duo Two-Factor Authentication averaged 34.
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 Two-Factor Authentication Reviews
Extra Security
Love having this plugin because it adds an excellent layer of much needed security
Death by bit rot.
This used to be an awesome plugin. It offered seamless integration with Duo, blocking admin access to my site in the case of a password compromise or brute force attack. Sadly, it recently just st
No updates for half a year, no PHP 8. Too bad
Best 2FA addon for WordPress – if it wasn’t so neglected. No updates for half a year, no PHP 8. Too bad. Could have been so great. Now it’s out. This topic was modified 3 years, 3 months ago b
More Two Factor Worth Comparing
Top alternatives in the same category as Two Factor Authentication and Duo Two-Factor Authentication
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.
Adds an extra layer of security to your Wordpress Account. Same as Google 2-step verification.
Easily add Duo authentication to your WordPress website. Enable multi-factor authentication for your admins and/or users.
WebAuthn authentication provider for Two Factor plugin.
Frequently Asked Questions
Is Two Factor Authentication or Duo Two-Factor Authentication more popular?
Which has better ratings — Two Factor Authentication or Duo Two-Factor Authentication?
Are Two Factor Authentication and Duo Two-Factor Authentication free?
Which plugin has better support — Two Factor Authentication or Duo Two-Factor Authentication?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.