An app that beeps loudly when another person with a cellphone is closer than 6 feet.
Alarm volume varies based on the installed app base the invader of personal space approaches -- they have Outlook? lower -- TikTok? Much higher.
And of course louder based on how close they've been to other humans in previous 24 hours.-- theircompetitor, Mar 18 2020 As paranoid as this is, it's friggin' brilliant.-- doctorremulac3, Mar 18 2020 random, halfbakery