[KeyCAPTCHA]

Originally Posted by hornstar1337

So how are you able to provide this for free? What is the catch?

There is no catch. We have two additional fee-based services - Personal KeyCAPTCHA and Extended Account.

Personal KeyCAPTCHA:
You are welcome to use our standard set of KeyCAPTCHAs offered by our service for free. However, if you are willing to make your site really unique one, you should use our additional service Personal KeyCAPTCHA. This service allows you to create your own captcha which will have an ideal match with the look&feel of your site. If your site is on e.g. fishing you’ll be able to create a CAPTCHA where visitors of your site are offered to place fishermen in a boat. More information about Personal KeyCAPTCHA you can find at https://www.keycaptcha.com/whatisit/?s=pc

Extended Account includes the following services:

• "Filtering of Anonymous Proxies" is a unique service KeyCAPTCHA . It allows to block messages from visitors using anonymous proxy servers. The list of anonymous proxy servers is updated every hour and contains thousands of unique addresses spammers usually use to work. This service drastically enforces the anti-spam protection of your site even against manual (by human) spamming.

Best regards,
Maxim Vladykin
KeyCAPTCHA Support Team