I assume you're talking about this app: www.smogon.com/forums/threads/3526473/It's so much easier building teams on the app than on mobile, also the chats show nothing when I click on them. I mean if you're going to make an app you should be taking the steps to improve it when it is ununusable.
Pokemon Showdown had nothing to do with the creation of that app, so please do not post problems with it in this thread. Using a browser on mobile is really the best you're going to get, since it seems like no one maintains said app.