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Guy2Guy is one of the first mHealth HIV prevention programs for sexual minority boys aged 14–18 years, evaluated nationally. Here, we examine the program's feasibility and acceptability and explore participants' feedback about program content and components intended to invigorate program engagement.

Guy2Guy was tested in a randomized controlled trial of 302 youth assigned to either the intervention or an attention-matched control group. At 3-month follow-up, participants completed a survey that included questions about feasibility and acceptability. Focus groups were conducted with a subset of intervention participants (n = 45) to further understand their program experience.

The protocol and program appeared to be feasible: 94% completed the 3-month follow-up survey. The intervention also appeared to be acceptable: 93% of intervention participants said they somewhat or …