chatflow

ChatFlow.io Click To Chat Widget allows your visitors to start chat with you on multiple Messaging Apps easily so you can still keep in touch with them even when they left your website.
Boost your website conversion today!
<a href="https://chatflow.io" rel="nofollow ugc">Documentation</a>
<h4>Features</h4>
<ul>
<li>Automated Message Triggering</li>
<li>Call to Action</li>
<li>Multiple Messaging Apps Support (Facebook Messenger, WhatsApp, Email & Phone Call)</li>
<li>Customisable Widget Appearance</li>
</ul>

ChatFlow – Click To Chat Widget for Website

Add the ability for your visitor to start chat with you on Facebook Messenger and WhatsApp directly from your website.

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.

ChatFlow – Click To Chat Widget for Website vs Cresta Social Messenger