The system helps to open the intercom and apartment entrance doors, controls check-in in the apartment and provides full information in the personal account: the guest books the apartment using the online platform, the administrator does the check-in for the guest and sends the access code for the Quarta application, the guest opens the front doors and uses a smartphone instead of keys.

The service is compatible with various types of electronic locks. Automation and quick access during check-in in a daily rental business helps to improve customer loyalty.