Technology-enabled Management Versus Usual Care for Blood Pressure

Inclusion Criteria: * Age 30-90 yrs. * Smartphone ownership * Office SBP: ≥ 140 mm Hg * ≤ 2 current anti-HTN meds * Able to add or dose-increase at least 2 of the following classes of medications: ACE-I/ARB, diuretic, calcium channel blocker, beta-blocker, mineralocorticoid receptor antagonists (i.e., at least 2 classes are available for addition or dose- increases after excluding intolerant medications and medications currently at maximum dose) * English or Spanish-speakers Exclusion Criteria: * Heart failure with reduced ejection fraction (EF \< 40%) * ESRD (GFR \<15) * Renal replacement therapy * Pregnant * Myocardial infarction or stroke within preceding 6 months * Hospitalization for hypertensive emergency or malignant hypertension within preceding 6 months * Prior solid organ transplantation * At the clinical discretion of the investigators * Enrolled in another clinical study