ThemeGrill

<p>Allows you to quickly create a maintenance/coming-soon page. You can use this plugin whenever your site is down for maintenance, currently going any upgrade or is in development. Built in options panel to add logo, background image, social icons, color, subscribe field and many more.</p>
<p>Get free support at http://themegrill.com/support-forum/</p>
<p>check the demo at http://themegrill.com/plugins/maintenance-page/</p>
<h3>Features And Options:</h3>
<ul>
<li>Responsive design looks great on your devices.</li>
<li>Logo Upload</li>
<li>Background image/color option</li>
<li>Subscriber Feature to collect emails</li>
<li>Download subscriber list as csv</li>
<li>Social icons</li>
<li>Font Color option</li>
<li>Add title, text message option</li>
<li>Option to exclude page</li>
<li>Custom CSS</li>
</ul>
<h3>Maintenance Page Pro:</h3>
<ul>
<li>Counter</li>
<li>Contact Form</li>
<li>MailChimp integration</li>
<li>Ip Whitelist</li>
<li>Background Slider</li>
<li>Background Video</li>
<li>Progress Bar</li>
<li>Google font option</li>
<li>Analytic Code Option</li>
<li>Role Based access</li>
<li>Font size option</li>
<li>About Page</li>
</ul>
<p><a href="http://themegrill.com/plugins/maintenance-page-pro/" rel="nofollow ugc">Upgrade to Maintenance Page Pro »</a></p>
<p><a href="http://demo.themegrill.com/maintenance-page-pro/" rel="nofollow ugc">View Maintenance Page Pro »</a></p>


Maintenance Page

Allows you to quickly create a maintenance/coming-soon page. Use this plugin whenever your site is down for maintenance or undergoing development.

Mark Bridgeman

<p>Rokku Maintenance Mode lets administrators easily enable a maintenance mode for their WordPress site.<br />
When enabled, non-logged-in visitors will see a custom maintenance page with:</p>
<ul>
<li>A custom logo</li>
<li>A headline message</li>
<li>A WYSIWYG text message</li>
</ul>
<p>The WordPress admin bar turns red while maintenance mode is active, and an admin notice is displayed.</p>
<p>Perfect for site updates or temporary downtime, without the complexity.</p>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later.</p>


Rokku Maintenance Mode

A simple maintenance mode plugin for WordPress. Customize your maintenance page with a logo, headline, and WYSIWYG message.

Maintenance Page vs Rokku Maintenance Mode