A bit buggy with a HORRIBLE bug report system
App can crash when accessing certain pages. The app remembers the last page accessed, so attempts to reopen the app only result in crashes. You have to follow a Wikipedia link from a webpage to some other article that will open the app and break the loop. (If you really want to crash your app, go ahead and use it to look up satellite flare. Dont say you werent warned.)
Reporting a serious bug like this is nearly impossible. Wikimedia has its own convoluted system for such things that isnt even built into the app itself. I only managed to find HOW they wanted the bug info presented, not where to submit it. I dont have time to jump through hoops. So, unless some Wiki-savvy guru hits the same bug I found, its unlikely to be fixed.
gonif about Wikipedia, v5.0.2