itthinx

Activate and the Captcha will appear on the affiliate registration form when the <a href="https://wordpress.org/plugins/captcha/" rel="ugc">Captcha</a> plugin is activated.
Requirements:
<ul>
<li><a href="https://wordpress.org/plugins/affiliates/" rel="ugc">Affiliates</a> or <a href="http://www.itthinx.com/shop/affiliates-pro/" rel="nofollow ugc">Affiliates Pro</a> or <a href="http://www.itthinx.com/shop/affiliates-enterprise/" rel="nofollow ugc">Affiliates Enterprise</a></li>
<li><a href="https://wordpress.org/plugins/captcha/" rel="ugc">Captcha</a></li>
</ul>

Affiliates Captcha

Affiliates, Affiliates Pro and Affiliates Enterprise integration with the Captcha plugin.

ablancodev

Kento

This plugin integrates <a href="https://wordpress.org/plugins/affiliates/" rel="ugc">Affiliates</a>, <a href="https://www.itthinx.com/shop/affiliates-pro/" rel="nofollow ugc">Affiliates Pro</a> and <a href="https://www.itthinx.com/shop/affiliates-enterprise/" rel="nofollow ugc">Affiliates Enterprise</a> with <a href="https://wordpress.org/plugins/ninja-forms/" rel="ugc">Ninja Forms</a>.
This integration features: 
– Affiliates can sign up through forms handled with Ninja Forms. 
– Form submissions that are referred through affiliates, can grant commissions to affiliates and record referral details.
Requirements:
<ul>
<li><a href="https://wordpress.org/plugins/ninja-forms/" rel="ugc">Ninja Forms</a> : Please note that you must use version 3 or later.</li>
<li><a href="https://wordpress.org/plugins/affiliates/" rel="ugc">Affiliates</a> or <a href="https://www.itthinx.com/shop/affiliates-pro/" rel="nofollow ugc">Affiliates Pro</a> or <a href="https://www.itthinx.com/shop/affiliates-enterprise/" rel="nofollow ugc">Affiliates Enterprise</a> : This integration works fully with all versions.</li>
<li><a href="https://wordpress.org/plugins/affiliates-ninja-forms" rel="ugc">Affiliates Ninja Forms</a> : This plugin.</li>
</ul>
Documentation:
<ul>
<li><a href="https://docs.itthinx.com/document/affiliates/setup/settings/integrations/" rel="nofollow ugc">Integration with Affiliates</a></li>
<li><a href="https://docs.itthinx.com/document/affiliates-pro//setup/settings/integrations/" rel="nofollow ugc">Integration with Affiliates Pro</a></li>
<li><a href="https://docs.itthinx.com/document/affiliates-enterprise/setup/settings/integrations/" rel="nofollow ugc">Integration with Affiliates Enterprise</a></li>
</ul>

Affiliates Ninja Forms

Integrates Affiliates, Affiliates Pro and Affiliates Enterprise with Ninja Forms.

Affiliates Captcha vs Affiliates Ninja Forms