Manuel Razzari

Users who are not logged-in will be <code>302</code> redirected to an absolute URL specified by the admin.
Any user who can log in, from admins to subscribers, will be able to access the site.
To turn off this redirection, clear the redirect URL field, or simply disable this plugin.
<h4>Use cases</h4>
This is a very minimal plugin for very simple use cases, when you want to avoid the bloat of a full-on redirection plugin.
<ul>
<li>Site launch. Redirect to some static coming soon page. Then disable the plugin to launch the site!</li>
<li>Staff-only site. Only members of your staff can log in.</li>
<li>Membership. If your needs are very simple, this plugin might work.</li>
</ul>

Redirect anonymous users

Users who are not logged-in are redirected to a specific URL.

wpeffects

RS Coming Soon plugin has super admin panel where your customize anything including fonts and translate to any language and control saved emails from visitor and export to csv formate even you can remove emails from admin panel. Its fully SEO optimized under construction plugin
See live demo here: http://themebon.com/rs-coming-soon/
Features
<ul>
<li>Super easy installation.</li>
<li>Works with any theme.</li>
<li>Fully Responsive.</li>
<li>Fully Customizable.</li>
<li>Amazing cloud effects.</li>
<li>Seo friendly.</li>
<li>Powerful security.</li>
<li>Form validation.</li>
<li>Show success message after submit.</li>
<li>Store emails in database.</li>
<li>Show emails in dashboard.</li>
<li>Remove emails from dashboard.</li>
<li>All major browser supported.</li>
<li>and many more.</li>
</ul>

RS Coming Soon

RS Coming Soon plugin Creates a page for your Website while it's under construction and collects emails from your visitors and show in dashboard.

Redirect anonymous users vs RS Coming Soon