The proposed 3-year study will develop and test RAP for incentivizing ART clients to remain engaged in care and highly adherent to their medication. Phase 1 of the project will consist of focus groups with patients, clinic providers and directors, and community leaders and will elicit information on barriers and facilitators of long-term retention and adherence maintenance, how to best implement the intervention to ensure acceptability and feasibility, and perceptions of the transportability of the planned intervention. Parameters of the intervention that will be probed include the frequency, type, and value of the prizes, and award presentation. Phase 2 will build on Phase 1 to develop and pilot test the RAP in a 20 months long randomized controlled trial (RCT) among clients who have been on ART for at least 2 years and have problems with missed clinic appointments or ART doses. Primary assessments will be administered at screening and months 4, 8, 14 and 20. In Phase 3 some adjustments to the intervention will be made after reviewing Phase 2 data, if needed, and then the intervention will be administered to the control group for 6 months to assess effects on adherence in this group (the original intervention group will not participate in this phase). Finally, the investigators will conduct focus groups with providers, implementers, and study participants to learn about implementation difficulties and areas for future improvement. Study findings will directly inform the design parameters of a larger, more rigorous evaluation in an R01 application that will focus on the cost-effectiveness and sustainability of the intervention.