4 stars: The app itself works pretty well, but would be perfect if there's an option to change the language to English.
5 stars: First time a mobile provider app actually does something useful for me and doesn't bother me with cross selling ads all the time. Very good. Tells you exactly how much data you used and what your averages are. So you can adjust your contract to your needs anytime. Well done.
4 stars: Everything on the app is awesome 👍 Please please please release an option to view the app in English as well. That would help alott.
3 stars: Good, but data while traveling is very expensive.
3 stars: The app is okay to add funds for prepaid, but from an accounting perspective it's not ideal. Is like to be able to see when my account balance was charged, and for what purpose, but none of that is possible.
4 stars: Very useful, but would be even better, if it would show the used/remaining units to the prepaid customers too.
5 stars: It is a helpful,within seconds you add money on your prepaid account.
5 stars: Very simple to handle
5 stars: Works very well, no issues so far.
5 stars: very good, very user-friendly. the service hotline is great, too. german people \u0026 people who come to germany, buy a congstar simcard! don't accept \u0026 respect a carrier who doesn't respect you \u0026 your privacy...! congstar is a good, honest \u0026 genius carrier! internet is fast! not as some others who pretend you 100 MB per sec \u0026 give yo...