This is the official app of the company founded by Patrick R. Kircher and designed for users who have a German residential address. The app offers the same services as the website, with the advantage that you can use it on your phone.

If you want to make calls via the Internet, the app will give you a German phone number that can be used to make calls to any country in the world. 

You will be able to make calls via the Internet, even when the app is not active. You will need a data connection, either WLAN or mobile data.

satellite allows you to make a call to a mobile number in Germany and any country in the world. You can choose the country to which the number is assigned and the provider of the data connection.