Ridhwan Ahsan

<p>RMGCaptcha Math Guard adds a GDPR-friendly, math-based CAPTCHA to protect WordPress login, WooCommerce, and Contact Form 7 forms from spam, fake registrations, and brute-force attacks. No external services, no tracking, and fully WordPress.org compliant.</p>
<p>Features:</p>
<ul>
<li>WordPress login protection (captcha on wp-login.php)</li>
<li>Contact Form 7 integration via [pmcMathcaptcha] / [pmcMathcaptcha*]</li>
<li>WooCommerce login and registration protection</li>
<li>Lightweight spam protection without Google reCAPTCHA or third-party tracking</li>
<li>Configurable difficulty and operations (Addition/Subtraction/Multiplication/Random)</li>
<li>Hide captcha for logged-in users</li>
<li>Custom error message support</li>
<li>Optional rate limiting and honeypot</li>
<li>Failed login log + logged user list (admin pages)</li>
<li>Translation-ready</li>
</ul>


RMGCaptcha Math Guard – Math CAPTCHA for Login and WooCommerce

A lightweight math CAPTCHA and spam protection plugin for WordPress login, WooCommerce, and Contact Form 7 forms.

S R Tayade

<p>Easy Captcha plugin is basic captcha plugin to prevent spam submissions. Using Shortcode you can show Mathematical Expression to be solved in your form to prevent spam.</p>
<h4>Features</h4>
<ol>
<li>Admin can specify where the captcha should be displayed i.e, comments, login, registration or lost password form.</li>
<li>Admin can select arithmetic operations from available options – Addition, Subtraction or Multiplication.</li>
</ol>
<h4>Note</h4>
<ol>
<li>By default ‘Addition (+)’ operation is enabled. It’s recommended to keep at least one option selected at any point of time.</li>
<li>If you find any bugs, kindly report here: https://github.com/SushantRT/easy-captcha/issues</li>
</ol>


Easy Captcha by Croitre

Adds Mathematical Captcha to be solved in your form to prevent spam.

RMGCaptcha Math Guard – Math CAPTCHA for Login and WooCommerce vs Easy Captcha by Croitre