The World Health Organization (WHO) has developed a series of modules to support the implementation of pre-exposure prophylaxis (PrEP) for HIV among a range of populations in different settings. Jhpiego has partnered with WHO to make select modules in this app available in English, Spanish, or Portuguese and the Technical Brief on Event-Driven PrEP Usage available in this app in English and Spanish. This app provides information on initial suggestions for the introduction and implementation of PrEP based on currently available evidence and experience for clinicians, counselors, pharmacists, testing providers, and PrEP users. It also features a clinical calculator for estimated creatinine clearance.