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.

Manuel Frigerio

Easily install the SparkLoop\’s tracking script on your website and start tracking referrals in minutes.

SparkLoop

Quickly add the SparkLoop\'s Tracking Script to your website.

Affiliates Captcha vs SparkLoop