ThemeGrill

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.
Get free support at http://themegrill.com/support-forum/
check the demo at http://themegrill.com/plugins/maintenance-page/
<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>
<a href="http://themegrill.com/plugins/maintenance-page-pro/" rel="nofollow ugc">Upgrade to Maintenance Page Pro »</a>
<a href="http://demo.themegrill.com/maintenance-page-pro/" rel="nofollow ugc">View Maintenance Page Pro »</a>

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.

Web Experts Nepal

Create an Maintenance Mode Page that takes less than a minute to install & configure. This plugin won’t waste your time! It is simple, fast, efficient & user-friendly with just four tab settings.
Tabs and Options 
‘General’ Tab 
 * Enable Maintenance Mode 
 * Disable Maintenance on 
 * Choose Template 
 * Logo 
 * Background Options 
‘Content’ Tab 
 * Heading 
 * Content 
 * Content Border 
 * Choose Border Color 
 * Content Text Color 
‘Social’ Tab 
 * Facebook 
 * Twitter 
 * LinkedIn 
 * Instagram 
 * YouTube 
 * Email 
 * Phone Number 
 * Social Icon color 
‘Misc’ Tab 
 * Page Title 
 * Favicon 
 * Google Analytics Tracking 
 * Google Tracking ID

WEN Maintenance Mode

The fastest & simplest maintenance page for WordPress site. Super-easy to use!

Maintenance Page vs WEN Maintenance Mode