Inclusion Criteria:  Aged between 30 to 74 years; AND Hospitalised with CAD or other eligible cardiac procedure or condition including acute myocardial infarction (STEMI or NSTEMI), unstable angina, coronary artery bypass grafting or percutaneous coronary intervention; AND Defined as higher risk (score >= 6) by PEGASUS-TIMI 54 criteria; AND Eligible for Medicare.  Exclusion Criteria:  Inability to provide written informed consent; OR Non-English speaking; OR Inability to attend clinic visits; OR Inability to engage with an app due to low technical literacy or lacking access to a smart phone or wi-fi; OR Hospitalised with a primary diagnosis of heart failure; OR Requiring palliative care; OR Concomitant terminal non-cardiac illnesses that could influence 12-month prognosis (e.g. advanced malignancy); OR Participating in another study with a potential but unknown effect on outcome.