Hello Stanislav.
When activating the plugin, all users see the below page:
https://monosnap.com/file/CVs4IBXAMGQHcQujCkfkqPNcL9BdCM.png
If you don’t want to share some basic information with me, or Freemius on my behalf, feel free to click “Skip” and then Freemius won’t be activated. This system is opt-in and transparent, as required by the WordPress plugin repository guidelines.
As far as I understand, Freemius is not spyware, because “spyware is software that aims to gather information about a person or organization without their knowledge”. According to Wikipedia.
If you don’t want to share information like the PHP version of your site, feel free to click “Skip”. There is no requirement to opt-in to Freemius to use the plugin.?
Getting the information that Freemius collects is really useful for me, as I now know that of the users that updated recently only 2.8% use PHP 5.3. I can keep that in mind when considering adding new features/technology to the plugin. This is just one of decisions that are made easier.
Freemius is also used by other well known plugins such as NextGEN Gallery, FooPlugins, and Popup Maker. Simple Facebook Page Widget & Shortcode.
If you would like to know more about me, please visit my personal site or my?www.ads-software.com?profile. If you would like to know more about Freemius, the service I use, please visit the Freemius website.?
I hope that clarify’s things, if you have any questions or remaining worries, please let me know. I would like to understand your position and make changes if something trully is wrong.?
Kind regards
David