klarmobil

3.8
19.8K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Learn more
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About this app

Your contracts. Your control:

Always keep an eye on your bills, costs, and usage and manage them anytime – easy!

With a fresh design and intuitive features, managing your contracts is a real pleasure.

What the new klarmobil app has in store for you:

Bills & Contracts
• Check all bills quickly and conveniently.
• Get detailed insights into data, phone, and SMS usage.
• View contract details clearly.

Data & Usage
• See remaining data volume at a glance.
• Option to add additional data volume.
• View current SMS and phone minute usage.
• View usage directly from the home screen thanks to the app widget.

Personal Data
• Quickly update your address, bank details, or email address.

Other cool services
• Comprehensive FAQs for all your questions.
• All documents for the contract term are collected in one place in the online mailbox.
• Enable phone number portability.
• Manage all information about the SIM card (activation, blocking, PUK, e-SIM, and more).

Important
• The klarmobil app can only be used by private customers (those with fixed-term mobile phone contracts).
• To use the app, simply log in using the same details as on the website (klarmobil.de). If you don't already have an online account, simply register directly in the app.

Have fun with the new klarmobil app – download it now!
Updated on
May 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.8
19.2K reviews
Bachouche Ahmedseifedinne
November 22, 2025
the worst customer service i have ever seen i kept sending emails and emails with no logical response and they didn't even send me the sim card the funny thing is that they sent me the bill to the correct address but my sim card that i asked for wasn't sent a nightmare ( one star is soooo much for u )
Did you find this helpful?
klarmobil
November 25, 2025
It’s disappointing to hear about your experience with our customer service and the issue with your SIM card. We appreciate you bringing this to our attention and want you to know we are escalating this matter internally. Your feedback is invaluable as we strive to improve. Thank you for sharing your thoughts with us!
Jahir Ullah Khan
February 1, 2026
Trying to login for last few days to check my data usage. Can't login. The widget keeps spinning.
Did you find this helpful?
klarmobil
February 3, 2026
We generally recommend that you log out and log back in to the app or reinstall the app so that any incorrect data in the background is deleted. If this does not work, please contact our customer service team at www.klarmobil.de/service/kontakt/. Your klarmobil.de team
Amit Barthwal
November 13, 2021
I'm happy with Klarmobil. Although it's bit hard to connect to customer service center. Klarmobil need to improve in the area of customer support connectivity. Because people usually call when it's urgency and it's very frustrating...when it takes 20 min to connect to customer support. A personal tips for U. Don't wait to get connected with the customer support staff....rather choose the option in which they call you back. It works way better. Enjoy Klarmobil.
14 people found this review helpful
Did you find this helpful?
klarmobil
November 16, 2021
Hallo Herr Barthwal, vielen Dank für Ihr Feedback und die positive Bewertung. Wir freuen uns, dass Ihnen unsere App gefällt. Ihr klarmobil.de Team

What’s new

Dieses Update umfasst verschiedene Fehlerbehebungen und Verbesserungen, die für eine noch flüssigere und zuverlässigere Nutzung der App sorgen.
Jetzt neu im Bereich Angebote: Die klarmobil App-Deals - Exklusive Rabatte, nur für unsere Kunden.

Danke für die Nutzung der klarmobil App!
Content rating
Everyone
Learn more

App support

About the developer
klarmobil GmbH
info@klarmobil.de
Hollerstr. 126 24782 Büdelsdorf Germany
+49 40 348585300