There's nothing for the app to do, though, other than show wiki pages which any Internet browser would do anyway. I doubt anyone would want to view the wiki's contents if they weren't currently working on their game anyway (which means sitting at a computer which will have Internet access and a browser).
Hey Maruno, (this is not meant to be spam or scam) how would you like me to create a mobile app for the Wiki for essentials? Rather than going to the wiki, people can access all information from their smart phone or tablet. I would make it a free app in App Store, Google Play, and Windows Store