LetSync: Pilot Test of Mobile Health (mHealth) Intervention

Study B will entail a pilot randomized, controlled trial (RCT) of an mHealth behavioral intervention, LetSync, with 80 couples (N=160) to assess its acceptability, feasibility, and preliminary impact on retention in care and ART adherence as measured by antiretroviral concentrations in hair. Participants in the intervention arm will use LetSync v1.0 for 6 months and provide acceptability and feasibility data. Participants will then continue to use LetSync v1.0 while the Waitlist-Control group begins to use LetSync v2.0.

LetSync v2.0 will be developed by taking feedback from participants regarding LetSync v1.0. Participants in the waitlist-control group will be given LetSync v2.0 to use during the last 6 months of the trial.