Goal Setting and Mobile-based Self-management Tool to Improve Diet Quality of People With High Blood Pressure

This study is testing whether a smartphone app that helps people with high blood pressure set personalized diet goals and track their eating habits can improve their diet quality and lower their blood pressure over time. **You may be eligible if...** - You are 20–70 years old - You have been diagnosed with high blood pressure, or your blood pressure is elevated (systolic 120–139 mmHg and/or diastolic 80–89 mmHg) - You are currently eating an unhealthy diet (low DASH diet score) - You own and can comfortably use a smartphone **You may NOT be eligible if...** - You have had a recent heart attack, dangerous heart rhythm, fluid in the lungs, or severe heart valve disease - You are in the acute phase of a stroke or heart event - Your blood pressure is severely uncontrolled - You have a diagnosed mental illness or epilepsy - You have a cardiac pacemaker - You are pregnant or planning to become pregnant Talk to your doctor to see if this trial is right for you.