ja! mobil

congstar Services GmbH

About this app

With the free ja! mobil app, you quickly and easily have full control over your usage and data at a glance.
The ja! mobil app offers the following features:
For prepaid and contract plans
- View usage
- View data, SMS, and minutes
- Manage plans and options
- Change plans, book, or cancel options
- View and top up prepaid credit
- Manage SIM and eSIM plans
- Block/swap SIM cards, activate eSIM, view PIN and PUK
- Change personal data
- Change address or authentication PIN

We are continuously developing our ja! mobil app and welcome your reviews and constructive feedback.

You can find our app's accessibility statement at: https://www.jamobil.de/barrierefreiheit

We hope you enjoy our app!
Your App Team

Ratings and reviews

New update logs you out of your account. Then no matter what you do it says your credentials are incorrect, even when they are. This update is absolute dog doo doo. Edit: responding to the reply from the developer. There is no way to provide feedback from within the app because there's no button except logging in, which doesn't work, hence I am here. You already know what version of the app it is, the current one and I'm on the android store, do your job.

This prepaid line will force you to hear a bot message every single time you make a call that "reminds you" to put money into your account. They conviniently sell the 10€ credits for plan that are worth 8€, and since the account balance is now under 2€ you will be forever forced to listen to these messages. Doesn't matter if the plan has limitless calls and sms like mine. Better off buying another prepaid company 100%.

Why does tarif change takes 4 days to complete? Is it intentional that the network operator wants to double charge ? I had a Basic Tariff ending on 12 November. An hour before the end, I chose a new tariff plan. According to my previous experience, such a change came into effect in less than an hour. Yesterday, after the change request, I received an SMS saying that the new tariff plan would take effect on 15 Nov, while the current Basic tariff was renewed and charged. This is double charging!

What’s new

Wir haben die App unter der Haube weiter optimiert und weitere Sicherheitsfeatures in dieser Version mit aufgenommen.
Viel Spaß mit dem Update
Dein App Team