This pragmatic clinical trial aims to evaluate the impact of a telemonitoring program with an electronic alert system compared to standard treatment on the perception of self-care in patients after hospitalization for decompensated HF at 3 months post-discharge. And secondarily to evaluate its impact on clinical events, NT-proBNP and efficacy and safety to facilitate the use and titration of the recommended drugs in patients with reduced ejection fraction at 90 days.

Inclusion Criteria:

• Age ≥ 18 years
• Hospitalized for acute heart failure (regardless of the level of left ventricular ejection fraction) within 24 hours of discharge, or with a history of hospitalization for acute HF within 10 days prior to randomization.
• Own a smartphone (Smartphone) with internet Ability to speak and read Spanish.
• Residence in the metropolitan area of Buenos Aires

Exclusion Criteria:

• Pregnancy
• Alcohol or drug abuse
• Kidney failure in hemodialysis,
• Inability to use the app (Ex: cognitive impairment, lack of social support, lack of ability to communicate)
• Active cancer
• Life expectancy less than 1 year
• Candidates for care home or institutional end of life
• Severe psychiatric illness
• Planned cardiac surgery
• Patient unable or unwilling to give informed consent to participate.