
Stefan Haustein
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Stopped working for no apparent reason without an error message, just the screen going black. Which each re-installation, it apparently creates a new contract number (which is easy to miss/overlook -- and then one can't log in to the web interface with the old number, which is typically stored in the browser) -- and it loses all notification settings. Installation on two phones (for backup) not possible.
TopCard Service AG
August 14, 2025
Thank you for your feedback. We kindly ask you to contact our customer service. Due to security reasons, we can not offer support through this channel.

Sandro Winkler (winklerrr)
App is not working. After having problems because of an unknown accessibility service (error message was totally misleading), I'm trying to register on a Friday morning, 9am (during the provided service times Mo-Sa, 7-22), but the app keeps telling me that I should use the app during their service times.
TopCard Service AG
August 14, 2025
Thank you for your feedback. We kindly ask you to contact our customer service. Due to security reasons, we can not offer support through this channel.

Guillaume Meyer
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Can't use on rooted phone. I understand that this is supposed to be a security measure, as the developer said. I also know that I can request a limited access to the portal to use it without my phone, which I did (waiting for the letter). However, I should get to choose whether I want to use this app while being aware of the security implications. Blocking access altogether is excessively limiting and frustrating. An app which can't be used on a rooted device doesn't deserve a better rating.
3 people found this review helpful
TopCard Service AG
June 15, 2020
For security reasons, the apps cannot be used if the protective mechanisms of the device manufacturer are removed or modified. You can, however, request a reduced access to your credit card data. To do so, select "Apply for limited access without the app" at www.topcard-service.ch/portal.