Remote Speech Analysis in HF Patients Undergoing Haemodialysis

Inclusion Criteria: * Patients undergoing hemodialysis every 5-10 days in order to balance their volume overload. * Class C Heart Failure patient with reduced EF CHF (EF\<40%) and NYHA 2-3. * Patients with dyspnea clinically related to pulmonary congestion * Patient with more than 3 months HF disease duration. * The patient is willing to participate as evidenced by signing the written informed consent. * Male or non-pregnant female patient Exclusion Criteria: * Subject who, in the Investigator's opinion, unable to comply with the daily use of the App due to mental disorders (e.g., depression, dementia). * Patient who has had a major cardiovascular event (e.g., myocardial infraction, stroke) within 3 months prior to screening visit. * Patients likely to undergo heart transplantation/ LVAD within 6 months of Screening Visit or baseline functional capacity of NYHA 4. * Patients with evidence of active Infection. * Patient with severe alcohol or drug use. * Psychological instability, inappropriate attitude or motivation. * Patient with life threatening debilitating disease other than cardiac. * Subject currently enrolled in another investigational device or drug trial that has not completed the primary endpoint or that clinically interferes with the current study endpoints.