MI-BP: mHealth to Improve Blood Pressure Control

Inclusion Criteria: * Detroit-area residents * Hypertensive * Owning a compatible smartphone * Presenting to the Detroit Medical Center Detroit Receiving, Sinai-Grace Hospital, or selected Community Health Screening Events with, but not necessarily for, uncontrolled blood pressure (systolic blood pressure ≥ 135 mm Hg at triage and on repeat measurement using the BpTRU device). Exclusion Criteria: * No self-reported prior history of hypertension * No hypertension diagnosis documented in their medical record * Non-English speaking * Presenting with an acute illness necessitating immediate medical intervention * Presenting with an admission to the hospital for critical reasons (as determined by the attending physician) * Pregnant (as determined by a dip test at screening), or self-report during trial. * Having the following serious comorbidities or confounders due to the fact that they may make blood pressure control difficult or necessitate frequent Emergency Department use or hospitalization: * Previous diagnosis of resistant hypertension (or current use of 3 or more maximally dosed antihypertensive agents without achievement of blood pressure control) * Steroid dependent asthma or emphysema * Cirrhosis or hepatic failure * Chronic heart failure (any stage) * Previous diagnosis of acute myocardial infarction, angina (stable or unstable), or known coronary artery disease * Previous diagnosis of cerebrovascular disease (including transient ischemic attack or stroke) * Known valvular heart disease * Stage IV or V chronic kidney disease * Cancer (terminal or undergoing active chemotherapeutic or radiation therapy) * Patients with other serious medical conditions that may affect their ability to self-monitor blood pressure (such a dementia) * Having a history of alcohol or drug abuse as determined by the CAGE-AID questionnaire (excluded if 2 or more) * Week 2 measurement of systolic blood pressure \< 130 mm Hg using the BpTRU device or study-issued BP cuff.