Conclusion
The demonstrated feasibility and acceptability of the PrEP mini-app, as well as its potential strengths and limitations in facilitating PrEP uptake in our study sample offer lessons for future scalable mHealth efforts. Providing comprehensive information on how PrEP works and how to access it in respectful and plain language is critical for participant engagement. Future improvements in such mHealth solutions may include diversifying the content presentation in engaging media formats (e.g., short videos), adding user engagement features (e.g., anonymous forums, comments under articles, live stream, ability to share components of the intervention with peers), and providing off-line in-clinic navigation support during initial PrEP visit. More importantly, structural barriers often pose a greater challenge to successful PrEP uptake than individual motivation and intention. Existing gaps in the shortage of PrEP providers and restricted channels for formal PrEP care are often posing a greater challenge need to be bridged to improve PrEP accessibility overall.