Linking Youth to Pre-Exposure Prophylaxis (PrEP) Services

Inclusion Criteria: * Age 13-24 years, inclusive; * Reports anal or vaginal sex in the past year; * Is not living with HIV; * Weighs at least 35 kilograms (77 pounds); * Willing to receive PrEP care from a provider at a participating SC either in the clinic or at one of the designated places in the community being offered by the SC SC; * Has an Android-based smartphone or iPhone; * Has fluency in English (able to read, speak, and understand English); and * Willing to provide informed consent to participate in the study. Exclusion Criteria: * Has counter-indications for PrEP according to guidelines and approved local label; * Has any clinically significant systemic disease (including but not limited to significant or uncontrolled liver disease, gastrointestinal disease, kidney disease, thyroid disease, osteoporosis, or bone disease) or diabetes; * Any other medical, behavioral, or other conditions that, in the opinion of the SC project lead or designee, could interfere with adherence to study procedures or compromise interpretation of study results; * Concurrent participation in ATN 166, ATN 170, or any other clinical trial providing HIV medications (PrEP, vaccine, etc.) or currently receiving any PrEP-adherence or persistence behavioral intervention; or * Is currently incarcerated or pending incarceration.