Really Simple CAPTCHA vs. MailChimp for WooCommerce
Take a look at this side-by-side comparison of Really Simple CAPTCHA and MailChimp for WooCommerce.
At a Glance
Really Simple CAPTCHA
About Really Simple CAPTCHA
Really Simple CAPTCHA does not work alone and is intended to work with other plugins. It is originally created for Contact Form 7, however, you can use it with your own plugin.
MailChimp for WooCommerce
About MailChimp for WooCommerce
MailChimp for WooCommerce gives you the ability to automatically sync customer purchase data to your MailChimp account.