Hi,
I read your idea for a contact tracer app with interest and wondered if we could be of assistance. I run Internet businesses in the UK, and have some experience with app development.
I was originally thinking that a contact tracer app could listen for all bluetooth devices it comes in contact with, and record them in an internal database. If an app user becomes infected with COVID-19 they could then send a report to a central server with their own device mac address, which would then be synchronised to all app users and cross referenced with their internal DBs so you could alert all close contacts.
However, we are not experts with Bluetooth and we have been learning that it does have some privacy features which may randomise the mac addresses used. The implementations seem to vary between iOS and Android, so we have started looking at other nearby messaging frameworks to see what could be used.
Is there anyone already looking at this that we could coordinate our efforts with?
Regards,
Paul Maunders