themelooks

PopForms is a Material Design WordPress modal form Set including Five Exclusive material design form like contact form, forgot password form, subscribe form, signup form, login form. Anyone can easily use this plugin.
<h4>Main Features of PopForms Lite:</h4>
<ul>
<li>Latest WordPress v5.3.x Ready</li>
<li>Based On Material Design Lite</li>
<li>Login Form</li>
<li>Sign Up Form</li>
<li>Forgot Password Form</li>
<li>Subscribe From</li>
<li>Contact form include captcha and attachment</li>
<li>Shortcode</li>
</ul>
<pre><a href="https://codecanyon.net/item/popforms-material-design-wordpress-modal-forms-set/18065357?s_rank=5" rel="nofollow ugc">Checkout The Pro Version</a></pre>

PopForms Lite

Short Description: Material Design WordPress popup forms with contact, login, signup, and subscribe options.

mailstroom

Mailstroom Subscribe is a WordPress plugin that allows visitors to easily subscribe to your newsletter through a modern modal form.
Features:
<ul>
<li>Modern, accessible modal form</li>
<li>Fully responsive (desktop, tablet, mobile)</li>
<li>AJAX processing without page reload</li>
<li>Double opt-in (GDPR compliant)</li>
<li>Customizable colors and texts</li>
<li>Shortcode for flexible placement</li>
<li>Secure: nonces, escaping and sanitization built-in</li>
</ul>
How it works:
<ol>
<li>Place the shortcode <code>[mailstroom_button newsletter="ID"]</code> on your page</li>
<li>Visitors click the button</li>
<li>A modal opens with the subscription form</li>
<li>After filling in, they receive a confirmation email</li>
<li>After confirmation, they are subscribed</li>
</ol>
Requirements:
<ul>
<li>An active Mailstroom account</li>
<li>API credentials (available in your Mailstroom admin panel)</li>
</ul>
<h3>Privacy</h3>
This plugin: 
* Sends submitted data to the Mailstroom API 
* Does not store personal data locally 
* Does not place tracking cookies 
* Uses WordPress nonces for form security
For more information about how Mailstroom handles data, see the privacy policy of your Mailstroom administrator.

Mailstroom Subscribe

Newsletter subscription form that integrates with Mailstroom - a newsletter system for municipalities and organizations.

PopForms Lite vs Mailstroom Subscribe