Inclusion Criteria:  Aged +18 years Hospitalized for acute decompensated heart failure in a tertiary referral hospital Owning a mobile phone compatible with MyPlan and access to Wi-Fi or mobile data (either the patient or the caregiver)  Exclusion Criteria:  NYHA IV patients Currently listed for heart transplant Left ventricular assist device recipient Ventricular arrhythmia within prior 6 months Uncontrolled arterial hypertension or resting heart rate >100 bpm Acute myocarditis or pericarditis Severe aortic stenosis Hypertrophic obstructive cardiomyopathy Advanced AV block Muscle-skeletal or neurologic disease preventing to perform study procedures ACS within prior month Severe lung disease Moderate or severe cognitive impairment Unable/unwilling to consent Projected life expectancy <6 months Clinical judgment concerning other safety issues