4.0
249K reviews
Content rating
Everyone
10M+
Downloads
Content rating
Everyone
Users Interact, Digital Purchases
Learn more
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About this app

The most important services & advantages in the Mein o2 app.

With the multiple award-winning Mein o2 app, you can use the most important services and benefits anytime, anywhere.

It doesn't matter whether it's a prepaid or term contract, you'll find everything here at a glance. The o2 Business App is available for business customers.

The Mein o2 app offers the following functions:

FOR CONTRACT CUSTOMER
———
• Check consumption: data volume at home and abroad, telephony and SMS outside of flat rates - also as a home widget
• View tariff details and book tariff options
• Change customer data – conveniently while on the move
• View invoices and itemized bills (EVN).
• SIM & contract services such as number portability, order and activate eSIM, manage third-party services and much more.
• Send live check of the o2 network and fault report
• New customer benefits every month with our Priority loyalty program


FOR PREPAID CUSTOMERS:INS
———
• Check used data volume & units (minutes & SMS).
• View current credit and easily top up credit
• Change tariff or book additional options
• Change customer data – conveniently while on the move
• Live check of the o2 network


FOR MY HANDY CUSTOMERS
———
• Information on the My Handy contract
• Digital version of the invoice
• Insight into the installment plan
• Early Payment


PLEASE NOTE
———
Mein o2 is the app for o2 private customers. The »o2 Business App« is available for business customers. Alice Mobile connections and third-party providers are not supported.


LIABILITY/REQUIREMENTS
———
Please note: This app is based on the online services of Telefónica Germany. Constant availability of the service cannot be guaranteed. To use the Mein o2 app, an account at o2online.de is required
Updated on
May 28, 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

4.0
244K reviews
Jen Gallardo
June 26, 2026
newly downloaded app but cannot login. it kept on providing the error below. please note that I am able to login in the web portal so no problem in the pw. Telekom is much better in handling topics like these. "Da hat etwas nicht geklappt Beim Anmelden ist ein Fehler aufgetreten. Versuche es in ein paar Minuten noch einmal. Hinweis: Mit dem O2 Community Login kannst du dich nicht in die App einloggen"
Telefónica Germany GmbH & Co. OHG
June 29, 2026
Hello Jen Gallardo, thank you for your review. Have you ever cleared the cache and storage and then reinstalled the app? If the message continues to appear, please contact customer service or, alternatively, post in the o2 Community so that your data can be reviewed.
Jelena Murašova
May 15, 2026
Worst app ever. Many features cannot be displayed, I get error messages very frequently: content can't be loaded, options can't be displayed. Sometimes I cannot even choose a new internet option, it takes days until I can book something. I do not recommend the app.
Telefónica Germany GmbH & Co. OHG
May 18, 2026
Hallo Jelena Murašova, vielen Dank für deine Bewertung. Schade, dass du diesen Eindruck erhalten hast. Bitte lösche einmal den Cache und Speicher der App in den Einstellungen und installiere sie anschließend neu. Klappt es nun?
Salman Miraj
May 21, 2026
Please don’t get drawn in by cheap packages. My experience with O2 has been disappointing. I had connection issues in 2022 and struggled to get the contract canceled. In 2026, I’m facing similar problems again. - The app still doesn’t support language changes and redirects many options to the web version. - Their cable internet relies on Vodafone’s infrastructure, which may be why the connection is unstable. Overall, not recommended based on my experience.
Telefónica Germany GmbH & Co. OHG
May 21, 2026
Hallo Salman Miraj, danke für deine Bewertung.Schade, dass du negative Erfahrungen gemacht hast.Bitte beachte, dass sich deine Bewertung hier ausschließlich auf die Mein o2 App beziehen sollte.Aktuell ist die App nur auf Deutsch verfügbar, dein Feedback nehmen wir gerne mit. Bei Anliegen zu deinem Vertrag hilft dir unser Service-Team gerne weiter.

What’s new

Wir haben die Mein o2 App verbessert:

• Sicherheit und Datenschutz optimiert
• Verbesserte Stabilität und Performance
• Diverse Bugfixes

Viel Spaß mit der App!
Content rating
Everyone
Users Interact, Digital Purchases
Learn more

App support

About the developer
Telefónica Germany GmbH & Co. OHG
appstore@telefonica.com
Georg-Brauchle-Ring 50 80992 München Germany
+49 89 787979443