What the user insights from user testing and observation taught us most about the final app interface are:
• Users expressed how the app may distract conversations and interactions or startle them during interaction with others. But after a few seconds of reflection, and after making that statement, all the interviewees agreed it’s better to be safe than sorry.
• Users also commented that they must remind themselves, that proportionally more people are asymptomatic, however, that person’s cell number may trigger a warning anyway.
• Users like the interface to be as straight-forward as possible and somewhat discreet visually.
• They don’t care for siren type alarm sound. Most interviewees like a gradual elevation of vibration of 3 times, then pause, then 3 times again to distinguish between phone call alerts, i.e.
• They like that the app is compact with radius distance, sound, volume, vibration and log data link all on the same screen
• Those users who would also opt to quantify the crowd density, location, and high fever were happy to sync or share that information to other devices, as well as to others.