All articles ← Knowledge Base Gestures to use the app like a pro. How can I remove the ads? How can I restore my In-App purchase? How to change the font size. How to find the version number. How to open any Wikipedia article in iOS Safari with Das Referenz. Markers on maps are missing Open the original article on wikipedia.org URL scheme What is the difference between the two in-app purchases? Which languages are supported? Why are audio/video files not supported? Will there be an Android version? Will there be an iPhone version?