Joost de Valk

Easy contact form, embed it in a post or page by writing the shortcode [wpcf].
Features:
<ul>
<li>Spam protection.</li>
<li>Shows referrer information for the person contacting you.</li>
<li>Option for user to send himself a copy of the message.</li>
</ul>
More info:
<ul>
<li><a href="http://yoast.com/wordpress/enhanced-wordpress-contactform-plugin/" rel="nofollow ugc">Enhanced WordPress Contact Form</a>.</li>
<li>Read more about <a href="http://yoast.com/articles/wordpress-seo/" rel="nofollow ugc">WordPress SEO</a> so you can get the most out of this plugin.</li>
<li>Check out the other <a href="http://yoast.com/wordpress/" rel="nofollow ugc">WordPress plugins</a> by the same author.</li>
</ul>

Enhanced WP Contact Form

Easily add a contact form with spam protection to your pages, and get additional data about your visitors with each e-mail!

maandevs

Digital Mason

This Click-To-Call plugin has been developed by highly skilled, SEO-oriented programmers. This plugin was developed especially for website owners who prioritize website speed, SEO and understand its impact on their Google search results rankings.
Uploading this sticky Click-To-Call plugin to your website will add a simple SEO friendly bar at the bottom of any mobile device while browsing your website, allowing the user to contact you fast and easily.
The two default communication means are phone and Email. Premium users can enjoy fast links to their: WhatsApp, Facebook, Instagram, Twitter, Google My Business, Skype, Telegram, Onlyfans and Linktr.ee.
Available languages: English (US), Hebrew
About Us: 
We are a team of SEO and coding specialists with over 15 years of experience, servicing clients from all over the globe. We build super lightweight SEO oriented digital products that help boost conversion rate.
Our services include: 
WordPress Website Development 
Template Design (HTML, CSS, JS) 
WordPress and Elementor Website Development 
Server Administration 
Search Engine Optimization (SEO) 
Google Business Profile Optimization, Full Management and SEO 
Google & Facebook PPC
Available languages: English (US), Hebrew
<h4>Plugin Features</h4>
Quick and easy sticky to bottom Click-To-Call plugin visible in mobile devices only.
<h4>WordPress Click-To-Call made super easy!</h4>

Click-To-Call Sticky Mobile Button Lite


Good stuff, easy to add CTA button on mobile devices. 


Good to have plugin

Quick and easy sticky to bottom Click-To-Call plugin visible in mobile devices only.

Enhanced WP Contact Form vs Click-To-Call Sticky Mobile Button Lite