Talk:O2 Germany/@comment-32905120-20170822015424/@comment-24682153-20170822074234

Their app - like any app - is not essential, but convenient to check balance, activate options etc... German provider apps are for some unknown reasons often geo-restricted in the App Store or Play Store. Vodafone.DE app "MeinVodafone" was recently spotted by an user is his US store. So things may change some day. But Vodafone apps doesn't work for O2.

There is a manual on this Wiki how to bypass this restriction for Android and iOS (Apple) users: Provider_Apps. Remember that it's harder to translate what an app is telling you in your language if you don't speak the local language. A website or SMS can easily be transferred to a translator tool, an app can't.