The Q Patch Mobile Application is an accessory for the Q Patch ECG recorder and communicates with it through NFC interface (electronic interface of the Q Patch). The application is intended to be used by professional users (medical staff and technical staff) as well as by patients. Professional staff may use the application to initiate session, to read the Q Patch status and to terminate session. Patients may use application to report symptoms during monitoring and to read the status of the Q Patch.