Simple, easy to configure, recaptcha form, which works! fine on gmail.
However, the email message does not work, if you "Specify your email address" to, something other than gmail.
So, it could give you more flexibility and fields to play with. However, if you want a simple tool to filter out the humans from machines, this baby works.
No Fake free then upsell.
Code is very simple.
Limited in the flexibility.
Documentation is limited. (Example Google calls the Keys differently than the application)
Still compared to the others this works well once you get over the hurdle.
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