Hibiscus Technolab

Hibiscus Instant Chat allows you to engage your website visitors instantly with a clean and lightweight chat widget. Enable direct messaging, set default greetings, and position the chat button anywhere on your site. Perfect for improving customer engagement and increasing conversions.
<h3>License</h3>
This plugin is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

Hibiscus Instant Chat

Hibiscus Instant Chat — Turn your website visitors into instant conversations with a simple and customizable chat widget.

CrestaProject

<a href="https://crestaproject.com/cresta-facebook-messenger-demo-page/" rel="nofollow ugc">Plugin Demo</a> | <a href="https://crestaproject.com/downloads/cresta-facebook-messenger/" rel="nofollow ugc">Plugin Homepage</a>
With Cresta Social Messenger you can allow your users or customers to contact you via Facebook Messenger simply by clicking on a button. Users may contact you directly in private messages on your Facebook page and continue the conversation on Facebook Messenger. 
You can use the floating button which is positioned at the bottom right of the site or a button inside post or pages using the [cresta-facebook-messenger text=”Need Help?” icon=”yes” position=”top”] shortcode. 
Cresta Social Messenger is compatible with WooCommerce and WPML.
Some features
<ul>
<li>Add the button to open Facebook Messenger at bottom right of your site</li>
<li>Use the shortcode [cresta-facebook-messenger] to add the Facebook Messenger button in your posts or pages</li>
<li>Choose which pages to showo the Facebook Messenger button</li>
<li>Mobile version: click the button and automatically open Facebook Messenger App (if installed)</li>
<li>and more…</li>
</ul>
PRO version features
<ul>
<li>Change position of the box button</li>
<li>Change colors of the box button</li>
<li>Add tooltip on the box button</li>
<li>Change box size</li>
<li>Facebook Messenger widget</li>
<li>Different Animations</li>
<li>and much more…</li>
</ul>

Cresta Social Messenger

Allow your users and customers to contact you via Facebook Messenger with a single click.

Hibiscus Instant Chat vs Cresta Social Messenger