udidol

The Add Chat App Button plugin enables adding a customizable click-to-chat WhatsApp button. 
The plugin lets you choose between a simple WhatsApp icon and a rectangle with a custom text label (see screenshots).
<h3>Usage</h3>
To enable the WhatsApp button, check the first checkbox in the settings page. You will find the settings page in the admin dashboard menu, under Settings->Add Chat App Button.
You must enter an international phone number (only numbers, NO plus sign (+), NO dashes(-)) in order to enable the WhatsApp button. Even if you manage to save settings into the database without entering a phone number, your button might not work properly.
The plugin settings page has two tabs: “General Settings” and “Button Design”.
The General Settings tab includes options such as limiting the button to only display under a certain screen resolution (in pixels), attaching a default message that will be populated in the user’s phone when they click the button, and more.
The Button Design tab includes controls for the button color, label text color, button type (side-bearing rectangle, WhatsApp icon, fixed-bottom button), and more. The Button Design tab also includes a smartphone mockup with a live preview screen, enabling you to see a real-time (estimated) rendering of how your button would look, on the fly, as you are changing its design.
The plugin detects whether the site visitor is using a desktop or mobile device and serves a different link for each accordingly.

Add Chat App Button

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Add Chat App Button enables adding a customizeable click-to-chat button that opens a chat on WhatsApp. This plugin is not affiliated with WhatsApp or  …

farazify

FAB (Floating Action Button) is a Free & Light Weight WordPress plugin which displays the beautiful Floating Action Button on your WordPress front-end. After triggering/hovering the main button it will pop-up and shows the row of sub buttons with details. This plugin provides the 9 types of the following buttons with different-different functionalities:
<ol>
<li>Text Button</li>
<li>WhatsApp Button (Click to Chat)</li>
<li>Facebook Messenger Button</li>
<li>Phone Button</li>
<li>Email Button</li>
<li>Viber Button</li>
<li>Snapchat Button</li>
<li>Line Button</li>
<li>Intercom Button</li>
</ol>
Admin Setting Panel
<ul>
<li>Basic Settings</li>
</ul>
<ol>
<li>Activate/Deactivate Floating Action Button</li>
<li>Change the Position of Floating Action Button to Top-Left/Top-Right/Bottom-Left/Bottom-Right</li>
<li>Option to Trigger Button by Mouse-Click or Mouse-Hover</li>
</ol>
<ul>
<li>Main Button Settings</li>
</ul>
<ol>
<li>Set Button Icon</li>
<li>Set Button Icon Color</li>
<li>Set Button Background Color</li>
</ol>
<ul>
<li>Sub Buttons Settings</li>
</ul>
<ol>
<li>Add Text Button with WP Shortcode Support</li>
<li>Add WhatsApp Button</li>
<li>Add FaceBook Messenger Button</li>
<li>Add Phone Button</li>
<li>Add Email Button</li>
<li>Add Viber Button</li>
<li>Add SnapChat Button</li>
<li>Add Line Button</li>
<li>Add InterCom Button</li>
<li>Change Button Title</li>
<li>Change Button Content</li>
<li>Change Button Icon</li>
<li>Change Text Color</li>
<li>Change Background Color</li>
<li>Buttons Sorting with Drag & Drop functionality</li>
<li>Remove Buttons</li>
</ol>

Floating Action Button

Display the beautiful FAB (Floating Action Button) on your WordPress front-end.

Add Chat App Button vs Floating Action Button