If you wanna look for it by your own, Google "appics white paper" and you will find it. I didn't found it on their website directly what is a bit weird...
The Appics whitepaper is mentioned in this Tweet on their official Twitter account, but I also have not found any mention about it on their website so far.
See, good to know. It's a bit weird in my opinion that they don't have it on their own Webpage... Thanks a million for you research. Great to have open minded people around which do this. Muito obrigada my dear.