Mobile Cued Adherence Therapy (mCAT) for Blood Pressure Medication

Participants will be eligible to receive $30 at the end of four consecutive 30-day periods ($120 in total) if they demonstrate complete medication adherence through the Wellth app (i.e. taking a daily picture of their pills in their hand and submitting it through the Wellth app). Photos must be submitted within a 2-hour window around a specific time of day chosen by the participant and set at the start of each 30-day period. They will lose $2 (from their $30 total) for every day they miss a medication check-in within their pre-set 2-hour window with the Wellth app. The Wellth app will also provide reminders at the end of the day if participants have not yet completed their daily check-in.

"Participants will learn about habits and the importance of contextual cues for triggering their AH pill taking, and be asked to complete an electronic worksheet with a detailed description of their personalized contextual cue in terms of its: 1) location (e.g., where in the participant's house or office does this cue occur); 2) time of day; 3) preceding action (e.g., I usually go to the bathroom before making coffee); and 4) a visual cue (e.g., my coffee cup will trigger pill taking)."

Participants will be eligible to receive $30 at the end of four consecutive 30-day periods ($120 in total) if they submit daily evidence of their medication adherence habit using the Wellth app (i.e. one photo that provides evidence of pill-taking and one photo that provides evidence of their contextual cue, which participants will select and specify on their comprehension survey at the start of the study). Photos must be submitted within a 2-hour window around a specific time of day chosen by the participant and set at the start of each 30-day period. They will lose $2 (from their $30 total) for every day they miss a medication check-in (plus evidence of their contextual cue) within their pre-set 2-hour window with the Wellth app. The Wellth app will also provide reminders at the end of the day if participants have not yet completed their daily check-in.