Table 3.

Themes and definitions.

Theme		Definition
Reasons to download an app
	Cost	How much is acceptable for an app to cost to consider downloading an app
	Recommendations from friends	Downloading an app was influenced by recommendations from friends
	Time to download	The time it takes to download influenced men’s decisions to download the app to their phone
App design features associated with downloading and sustained use
	Control	Beliefs that having control over the different features/functions of the app is important
	Perceived usefulness	Beliefs that an app makes their life easier or is useful in their lives
	Engaging	Statements that an app has to be visually engaging, fun, and/or keep them interested
	Credible	Beliefs that the app has to be credible or come from a credible source
	Security/Privacy	Statements about security and how that might influence downloading or using an app
	Ease of use	Perception that the app is simple or easy to use or simple to navigate
Preferences for ART adherence app features and functionality
	Social networking	Beliefs that being able to network with other HIV positive people would be useful
	Resources	Statements that using the app to connect with local resources to help them manage their HIV or other nearby community resources would be helpful
	HIV news/updates	Having updated HIV information would be useful
	Synching capabilities	Beliefs that synching the app to other apps on their mobile phone/computer or synching with their electronic medical record would be helpful
	Reminders for health care	Having a reminder for their medical appointment and other medical needs is important
	Self-monitoring	Perceptions of how medication reminders should operate and specific ideas for medication reminder system
	Adherence performance feedback	Statements about how feedback about their ART adherence performance or other aspects of their life (eg, diet) should be presented
	Graphing and summarizing	Participants’ desire to have a feature that would graph their ART adherence performance or summarize their health over time
	Health file	Men’s beliefs that having a place to store their health information would be valuable