Sayem Ahmed

Easily add a floating WhatsApp chat button to your WordPress site. Let your visitors contact you directly via WhatsApp with a single click. Admins can set the WhatsApp number and customize the button color from the settings page.
Features: 
* Floating WhatsApp chat button on all pages 
* Admin can set WhatsApp number and country code 
* Button color is fully customizable 
* Uses official WhatsApp wa.me service 
* Lightweight and easy to use 
* No coding required

Simple Chat App

Easily add a floating WhatsApp chat button to your WordPress site. Let your visitors contact you directly via WhatsApp with a single click.

barthusz

This plugin creates a floating button with a link to a read more page (which you have to create yourself), meant for COVID-19 information. You can choose from different icons and set the colors, text, link and position of the button (including offset) in the WordPress backend. It is aimed to be simple and lightweight.

COVID-19 Float Button

Creates a floating button with a link to a read more page.

Simple Chat App vs COVID-19 Float Button