Is this plugin GDPR compliant?

Hi,

first thanks for your super plugins! As in Europe data protection gets tougher, time is running out for using solutions like Googles reCAPTCHA or other data eating solutions.

As I understood, this plugin only stores all data internally and no data is shared or gets out of the site? Can u confirm this? This would be a super solution to be GDPR compliant.

Thanks for your answer! ?