S-ID-Check

No matter what I do, I am completely unable to buy things with pages that require this app. It's infuriating. Occasionally I'll get a push notification, sometimes I just won't. If I'm very lucky it might even show me my order details in the app, but when I click to confirm nothing happens. Most of the time, when I click on the push notification I just get sent to the regular menu screen. Restarting the app doesn't help. Trying to generate an OTP gives me an error on the website.

The FAQ in the app says "Wenn Sie einmal keine Datenverbindung haben, können Sie Ihre Zahlung mit einem Offline-Passwort freigeben." but this functionality does not exist in the app. There is no way to generate an offline password. Also: most of the time I never get a push notification, so that my credit card is unusable. I have another banking app installed where I always get the notification, so it's not a problem with my phone.

Development team need to be fired immediatly. you can not make a payment.never seen an app which deletes your registered Card after some time without any reason and you are stuck with payments.

Well, simple would be great, but just leaving out functionality is wrong. After spending weeks to register my data, I never really needed the app - online purchases still worked the same ... hm so where is the additional security? Until today when suddenly I should verify my purchase via the app. Meanwhile the app has forgotten all my credit cards. Reregistration required scanning a qr-code ... which qr-code? This is scary. I am more afraid of being stuck with a transaction in the middle of nowhere ...

It is not possible to use the app on more then one smartphone at the same time for the same card. Very good is that it's possible to register online. Before I was terrified when I thougth about being abroad and being not able to book a flight or hotel any more. I resently lost the content of my userspace on one of my fones and I don't know how to backup this app's data!