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<a href="//wordpress.org/plugins/ninja-forms/" rel="nofollow ugc">Ninja Forms</a> is a great WordPress plugin and this plugin makes it even greater!
If you’re using Ninja Forms for gathering data and one or more of textbox fields 
must be unique, this plugin is for you. The plugin is pretty straightforward to 
install, and has few settings only (language settings, basically).
Once installed, it will validate every submission to make sure the values for 
one or more fields are unique.
Brought to you by <a href="http://fineswap.com/?utm_source=wordpress&utm_medium=plugin&utm_term=readme-desc&utm_campaign=ninja-forms-unique-textbox" title="A blog and a mobile app advocating sustainability and green living" rel="nofollow ugc">Fineswap</a> Team.

Ninja Forms Unique Textbox

Extend Ninja Forms' functionality by allowing textbox field to have unique values.

Kybernetik Services

WPSight

Mrinal Haque

<blockquote>
This bridge add-on does support the Ninja Forms 3.0 and above!
</blockquote>
The WPCasa Ninja Forms add-on is a bridge plugin for the Ninja Forms form builder (version 3.0 and above) that can be used to display a contact form on single listing pages in WPCasa. The add-on makes sure that useful property information is attaced to the emails sent through the form. It also comes with a starter form that includes all the necessary fields to make your life easier.
<blockquote>
This bridge add-on does NOT support anymore the new Ninja Forms version below 3.0
</blockquote>
Starting with WPCasa Ninja Forms 2.0 we have dropped the support for Ninja Forms version below 3.0.
<blockquote>
Please notice that this plugin is an add-on for <a href="https://wordpress.org/plugins/wpcasa/" rel="ugc">WPCasa</a> and will NOT work without the core plugin.
</blockquote>
WPCasa is a WordPress solution that provides an intuitive way to manage property listings and create first-class real estate websites.
<ul>
<li>Website: <a href="https://wpcasa.com" rel="nofollow ugc">wpcasa.com</a></li>
<li>Demo: <a href="https://demo.wpcasa.com" rel="nofollow ugc">demo.wpcasa.com</a></li>
<li>Documentation: <a href="https://docs.wpcasa.com" rel="nofollow ugc">docs.wpcasa.com</a></li>
</ul>

WPCasa Ninja Forms

Adds support for Ninja Forms 3.0 an above to attach property details to the contact email sent from WPCasa listing pages. Support for Ninja Forms belo …

Ninja Forms Unique Textbox vs WPCasa Ninja Forms