The Full Blue Service for Existing Customers
IMPORTANT! We change our system: As an existing customer, you use this ' Blau App ' - until you inform an SMS about the system change. After the changeover it continues with the 'My Blue' app.
Blau App : With this app you have direct access to your account area - at any time and from anywhere.
For customers with and without runtime
Prepaid customers:
• keep an eye on the credit consumption
• View and charge the credit status - both via a charging code and manually via your bank account.
• Book or unsubscribe tariff options flexibly
Contract customers:
• Keep an eye on invoice amounts
• Download monthly invoices
• Book flexibly EU foreign options
Special advantage: No data volume is used for the use of the app.
Have fun with blue
January 15, 2026
January 15, 2026
January 14, 2026
January 13, 2026
January 13, 2026
January 13, 2026
January 12, 2026
January 12, 2026
January 12, 2026
January 12, 2026