The BKK firmus mobile app is an easy and convenient way to register. No other documentation is required. If you already have a BKK firmus account, you can log in with your login and password. If you do not have an account, you can create one with your name, e-mail address, phone number, and address. The registration is free of charge.

The application is very simple to use. After registering, you can start using the new service immediately. The registration is valid for one year. If you are ill or have a sudden need for a change of address, you can apply for a certificate of membership on the application.