Inclusion Criteria:  Patients with paroxysmal or persistent symptomatic atrial fibrillation referred for initial catheter ablation Patients should be native Dutch speakers Patients are able to use the VitalHealth Engage platform on their own preferred device (tablet, mobile phone, computer)  The patient has at least one of the following risks  BMI ≥27 kg/m2, hyperlipidaemia (LDL-cholesterol >2.6 mmol/L or total cholesterol >5.0 mmol/L), hypertension (blood pressure >130/90 mmHg), diabetes mellitus with HbA1c ≥53 mmol/mol, active smoking, excess alcohol use (>14 equivalent units of alcohol / week)  Exclusion Criteria:  Longstanding persistent atrial fibrillation (persistent AF for more than 1 year) Permanent atrial fibrillation Asymptomatic atrial fibrillation Prior catheter ablation Paroxysmal atrial fibrillation consisting of one episode with a reversible cause (e.g. fever, surgery, thyroid crisis, ischemic) Severe valvular heart disease Prior or soon foreseen implantation of cardiac device such as pacemaker or internal cardioverter defibrillator Unstable heart failure New York Heart Association (NYHA) IV, or heart failure necessitating admission <3 months before inclusion Cardiac surgery <3 months before inclusion or planned cardiac surgery Patient is not willing to use a mobile phone application or willing to undergo elaborate monitoring. Malignancy Life expectancy <1 year Pregnancy