Hi Heike,
I listed everything we do with your users’ data on this post. There is nothing we store about them on our servers, no personal data stored on your server, just cookies for some of the add-on features and optional third party integrations.
This is what we can do to help you make your site compliant. You can pick the information you need and inform your users about them.
There will soon be information on how to not use cookies in the premium add-ons.
If you need more then please let me know. It is a work-in-progress.
Btw., a plugin cannot be compliant with a law, but just help your site to reach compliance. This is also now officially stated in the plugin guidelines.
Thomas