ja! mobil

ja! mobil

by congstar Services GmbH

24 ratings
24 reviews
Free

Details

  • Released
  • Updated
  • December 13, 2019
  • July 27, 2026
ja! mobil screenshot #1 for iPhone
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About

Easily manage your mobile plan, track usage, and control your data, SMS, and minutes. Recharge prepaid credit, manage SIM cards, and update personal information all within one app.

Track usage (data, SMS, minutes)
Manage tariff and options
Recharge prepaid credit
Manage SIM & eSIM
View and change personal data
Lock/replace SIM card
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What's New in ja! mobil

6.16.0

July 27, 2026

Mehr Platz in der Übersicht: SMS- und Telefonie-Kacheln sind jetzt standardmäßig ausgeblendet (bei Bedarf einblendbar). Zusätzlich haben wir die Usability weiter optimiert.

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User reviews

Was good!

There was really no need to update the app such that an upgrade to ios 17.6 is required especially when no website login or alternative for account management is available!

Response from developer

Older versions of operating systems no longer meet our security and functionality requirements. To use the app, you need at least iOS 17. If you have any concerns, our service team is happy to assist you 😊

Fantastisch

Ja mobil ist erreichbarer als ich dachte

Response from developer

Unverhofft kommt oft 😀. Danke für die tolle Bewertung.

Sehr gut

Man kann es sehr gut aufladen über die App Und die App ist sehr übersichtlich gestaltet

Response from developer

Das freut uns sehr zu hören! Gruß Linda

Einfach und übersichtlich

Diese App ist zwar optisch nicht sehr attraktiv. Das ist allerdings nicht wichtig, denn sie funktioniert. Zudem ist die recht übersichtlich und man kann alles einsehen und ändern.

Response from developer

Danke, schön das dir die Funktionalität gefällt, das ist, wie du sagst, ja das wichtigste. Danke und Gruß Patrick

Why isn’t there a language option for English

.

Response from developer

Thank you for your feedback. Greetings Jonathan

Developer apps

FAQ

What does the ja! mobil app do?

The app provides users with full control over their mobile usage and data. It allows you to easily monitor your data, SMS, and minutes, manage your tariff and options, and recharge prepaid credit. You can also manage your SIM and eSIM, update personal information, and access important details like your PIN and PUK.

What are the key features of the ja! mobil app?

Key features include tracking your data, SMS, and minutes usage, managing your tariff and options (booking or canceling), recharging prepaid credit, and managing your SIM and eSIM. You can also view and change personal data, and access SIM card management functions like locking or replacing a SIM.

Is the ja! mobil app free to use?

Yes, the app is free to download and use. While the app itself is free, it is designed to manage your mobile plan which may involve costs associated with your service provider's plans and options.

What can I do with my SIM card in the app?

The app allows you to manage your SIM and eSIM. You can view your SIM card details, activate an eSIM, and display your PIN and PUK codes. Additionally, you can lock or replace your SIM card directly through the app for added security and convenience.

Who is the ja! mobil app for?

This app is for customers of the mobile provider who have either a prepaid or a contract plan. It is designed for users who want to easily monitor their consumption, manage their account settings, and perform self-service actions related to their mobile service at any time.