NUMMIT

TintCal is a new kind of event calendar plugin designed for Japanese website creators and administrators. 
It eliminates the complexity and confusion often found in plugins made overseas, responding to the simple need of “just wanting to place an event calendar” with the best usability and a beautiful design.
= Key Features =
<ul>
<li>Easy Event Registration: Anyone can intuitively register and edit events from the WordPress admin screen.</li>
<li>Shortcode/Block Support: Place a calendar anywhere just by adding the <code>[tintcal id="..."]</code> shortcode or a dedicated block in the editor.</li>
<li>Responsive Design: The calendar displays beautifully without breaking its layout on smartphones or tablets.</li>
<li>Simple Settings: Basic customizations, such as the calendar header and weekend colors, can be easily configured.</li>
<li>Holiday Display: Automatically displays Japanese public holidays on the calendar.</li>
<li>Simple Category Management: You can register one type of schedule as a category and color-code the calendar.</li>
</ul>

TintCal

A beautiful and simple event calendar plugin for Japanese users. Add a calendar to any site with a shortcode, block, or widget.

perschmitz

Responsive, highly visible contact call-to-action that sits on top of your website. Combining instant-contact buttons, vCard import, location, business hours, messaging and more. Easily add your HelloBox to your WordPress site with the official HelloBox for WordPress plugin.
<h4>Features</h4>
<ul>
<li>Personalize look & feel to suit your needs</li>
<li>People can easily download your contact details</li>
<li>Business hours, including open/closed indicator</li>
<li>Contact form</li>
<li>Location</li>
<li>Phone & mobile tap-to-call, Skype integration</li>
<li>Messenger intergration</li>
<li>Responsive design (optimized for mobile, tablet & desktop)</li>
<li>Call-to-action triggers (on scroll, on exit-intent, time-based)</li>
</ul>
The HelloBox for WordPress plugin is a really simple plugin that allows you to copy and paste your HelloBox code snippet from <a href="http://www.gethellobox.com/" rel="nofollow ugc">getHelloBox.com</a>, straight to your WordPress admin interface.
Requirements: PHP5+, WordPress 2.9.x+
Important Links:
<ul>
<li><a href="http://www.gethellobox.com/" rel="nofollow ugc">getHelloBox.com</a></li>
</ul>

HelloBox

Responsive, highly visible contact call-to-action. Combining instant-contact buttons, vCard import, location, business hours, messaging and more.

TintCal vs HelloBox