4.3
34.7K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Always keep track of how much data volume, minutes and SMS you have already used. The Mein Blau app combines many useful services in a single application. So you are always up to date, regardless of whether you are a contract or prepaid customer.

Now to Mein Blau: Download the Mein Blau app to your smartphone now – for free, of course. And use the many practical functions to get even more out of your mobile life.


Contract customer: Your advantages with the Mein Blau app!

☆ Usage check of data volume, minutes and SMS
☆ View tariff details and book tariff options
☆ Your last six bills and itemized bills (EVN)
☆ Annual overview with invoice amounts for the past five years
☆ Easily check and change your customer data - conveniently on the go and without waiting times
☆ Price information for use abroad - simply by selecting the country


Prepaid customer: Your advantages with the Mein Blau app!

☆ Consumption display of the inclusive units of your booked options
☆ View current credit and easily top up credit
☆ Change tariff and book additional options
☆ Easily check and change customer data - conveniently on the go and without waiting times


*** Liability/ Conditions ***
Please note that this app is based on Telefónica Germany's online services.
Constant availability of the service cannot be guaranteed.
Registration for the online service is required to use the Mein Blau app. Registration is possible via the app or via the blau.de website.
Updated on
Apr 3, 2024

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

4.3
34K reviews
kester laurie
February 8, 2024
Complete rubbish. Just like the service. Never works. No translate option. Password must have 30 characters and 20 different symbols. Set a new password copy and pasted and it still didn't work. Trash.
1 person found this review helpful
Telefónica Germany GmbH & Co. OHG
February 8, 2024
Hallo kester laurie, danke für deine Bewertung. Schade, dass du nicht zufrieden bist. Dein Feedback, bezüglich der Übersetzungsoption, nehmen wir gerne mit. Magst du bitte einmal dein Passwort über das Onlineportal ändern und dich anschließend damit über die Mein Blau App anmelden?
naqeeb ullah
January 16, 2024
Rubbish and completely useless app for non Germans and the security is like you are working in NASA and are going to leak all the information. The registration process of blau connection is 🤮
1 person found this review helpful
Telefónica Germany GmbH & Co. OHG
January 19, 2024
Hallo naqeeb ullah, danke für deine Bewertung. Schade, dass du mit der App nicht zufrieden bist. Gerne geben wir deinen Hinweis intern weiter. Die Sicherheitsrichtlinien sind enorm gestiegen, auch diesen mussten wir uns anpassen.
Viacheslav Belov
August 6, 2023
Totally useless app. Strongly do not recommend this mobile provider. Cell coverage in Berlin is very weak. App feels like wroted by student project - regular looped and freezed, permanently needs to be restarted. Eg: tap once to button - nothing appears as visual response, tap one more time - created two different request for two different sim-account... And blau-support is also useless and smells like "just pay and shut up" (with response time in one week). Worst experience at all.
1 person found this review helpful
Telefónica Germany GmbH & Co. OHG
August 18, 2023
Hallo Viacheslav Belov, danke für deine Bewertung. Leider kam es zu Beginn des Monats zu Einschränkungen beim Login in unsere App. Inzwischen sollte dies aber wieder funktionieren. Alternativ kannst du auch unser Onlineportal nutzen, wenn du Probleme bei der Nutzung unserer App hast.

What's new

Dieses Update beinhaltet kleinere Verbesserungen und Bugfixes.