batasoy

ModalContact is a database based contact form: it does use WP database for storage, instead of mailing form contents. The rationale is, sometimes, especially cheap hosting servers can be very restrictive. Most contact form plugins have issues with these servers.
Besides this approach, as its name suggests, ModalContact has a modal form, so user does not have to leave the page. Contact Form pop ups on a overlay, just like the lightboxes.
This plugin is heavily based on work from Eric Martin, SimpleModal Contact Form.
Translations
Since this plugin is heavily based on SMCF, you can easily translate it (if it has a SMCF translation in your language). .pot file is included.
Thank you to all who have contributed these translations.

ModalContact (MCF)

ModalContact is a database based contact form: it does use WP database for storage, instead of mailing form contents. The rationale is, sometimes, esp …

tienhmdev

The “TINET Chat Buttons” displayes an fixed contact button on the bottom right of the screen. It opens an modal with your favorite contact form plugin. Before you have to generate a contact form and after this copy the shortcode into the plugin settings form Floating Contact Button. 
The plugin is real lightweight. The .css file is minimized to load as fast as can.
<h3>A brief Markdown Example</h3>
<pre><code><?php code(); // goes in backticks ?>
</code></pre>

TINET Chat Buttons

Thanks!

TINET.VN Chat Buttons is a free WordPress plugin for adding the live chat/call functionality of popular social media messaging apps.

ModalContact (MCF) vs TINET Chat Buttons