 The study aimed to gain insight into the access, utilization, and acceptability of mobile health, mHealth, interventions for HIV prevention among Malaysian men who have sex with men. The results showed that almost all respondents owned or had access to a smartphone with internet access and used it primarily for social networking, sending slash receiving emails, and searching for health related information. High acceptance of mHealth for HIV prevention was found, including for receiving HIV prevention information, medication reminders, screening and monitoring sexual activity, and illicit drug use. Participants overwhelmingly preferred a smartphone app over other modalities for engaging in mHealth HIV prevention tools. The study provides support for developing and deploying mHealth strategies for HIV prevention using a smartphone app in men who have sex with men. This article was authored by Roman Tresta, Francesca Maviglia, Frederick L. Altis, and others.