The purpose of this study was to determine the effectiveness of using a custom-designed mobile application to improve blood pressure (BP) and promote adherence to antihypertensive medication regimens. This was a prospective, multicenter, randomized controlled trial. Patients were randomized to an intervention or control group for three months. Antihypertensive medication refill history was assessed three months before, during and three months after the study period. Continuous outcome measures investigated were systolic/diastolic BP and medication refill history, using the cumulative medication gap (CMG) score.

Inclusion Criteria:

• 18 years of age
• Diagnosed with hypertension as evidenced by diagnosis codes or chart documentation
• Prescribed at least one antihypertensive for a minimum of three months prior to enrollment
• Have access to an Android mobile device with data capabilities
• Consent to using the application on their device

Exclusion Criteria:

• Do not read or speak English
• Unable to read and sign the informed consent or Health Insurance Privacy and Accountability Act (HIPAA) waiver
• Too ill or cognitively impaired to participate