by Ernie » Tue Jan 22, 2019 4:14 am
Hi Julia,
Sorry for the slow response. At the main Decks screen, tap gear icon at top-left to go to Global Options (Einstellungen) > Other (Sonstiges) > Show English.
Note that in iOS, there's a priority order of languages in iOS settings. Say your device is set to Russian, and German is #2 and English is #3. The app will show in German. If you drag English above German, the app will change to English. ("Show English" setting above would not be needed in this case.)