Hi @doc-savage,
1. This third party system/framework is used in our plugin in order to bring the licensing functionality and the pro features to all our pro users.
It’s not only Blocksy Companion that uses this framework, it is used by a lot of big WordPress companies and developers like OceanWP, Iconic, Stackable, Events Calendar and so on, more info could be found here – https://freemius.com/customers/
2. About what spammy, third party marketing site are you exactly referring?
Do you have any specific banners that appears in your dashboard that promotes spammy content? If so could you please show us a screenshot so we could take a look and see if this is coming from our side or not.
3. You don’t have to remove that folder, that folder contains the framework files that are used to bridge the free version of the product with the pro version and ensure that the transition is smooth between the two.
4. Everything is as clear and transparent as possible, you can find all the info on their website – https://freemius.com/
Freemius works the same way like WooCommerce or Easy Digital Downloads plugins but it has more features and is focused on developers needs like us or other WordPress developers.
This framework is GDPR approved and was built with respecting user privacy in mind.
And by the way, if you are not sure in something, maybe it would be better to inform yourself a little bit or ask us before making some wrong statements…
Let us know in case you will have any other questions.
Have a nice day!