Hello. I have created a wiki about the Flow Free App. It's almost done. You can check it out here:

Also, can somebody answer the following question: Are the levels of Extreme Pack locked? I want to know if the levels in Extreme Rainbow Pack are locked or not, after buying the pack. I know it is an in-app purchase, but I'm not sure if the levels are locked, just like in the mania packs, like 6x6 Mania or 7x7 Mania. The reason why I'm doing this is because I'm doing this for the wiki of Flow Free, to be assure if it is locked or not. That way, I'll be able to provide the solutions and information for the Extreme Rainbow Pack levels in the wiki.

LINK: https://flowfree.wikia.com