RecruitingBehavioural interventioniCardia4HF: Multi-component mHealth Intervention for Patients With Heart FailureThe goal of this factorial randomized trial is to examine the independent and synergistic efficacies of two mobile health technology interventions in people with chronic heart failure. The first intervention involves the use of multiple consumer mHealth apps and sensor devices (MyApps) for heart failure self-care (maintenance, monitoring, and management). The second intervention is a program of tailored text messages (Text4HF) targeting modifiable behavioral factors associated with heart failure self-care non-adherence. The main questions this study aims to answer are: 1. Can the use of consumer mHealth apps and devices (MyApps) improve heart failure self-care and reduce days lost due to cardiovascular hospitalization or death for any cause? 2. Can a program of individually tailored text messages (Text4HF) improve heart failure self-care and reduce the days lost due to cardiovascular hospitalization or death for any cause? 3. Can MyApps and Text4HF combined lead to greater improvements in heart failure self-care and days lost due to cardiovascular hospitalization or death for any cause