I’m speculating here, but it’s probably a data broker that gets location data from apps that share it as part of an advertising SDK. Users still need to enable

I’m speculating here, but it’s probably a data broker that gets location data from apps that share it as part of an advertising SDK. Users still need to enable location sharing. So the data ends selects for a cohort of people that installs sketchy apps and grants location permission. Ironically, this is probably the group of people least likely to follow social distancing guidelines.