Just go to the websites of the providers they are choosable in the module and you can see the current prices of each.
ReCaptcha module turn it off
-
ReCaptcha module is enabled, it can reduce browser authenticity.
So it is recommended to turn it off, unless you are working with recaptcha.
Should I take this warning seriously? -
If you need to solve a captcha, then you use the module. If you don't need to solve a captcha, then you don't use it)
There is no specific answer to your question, it all depends on the site you work with.
