as everyone has to use their sim card number or national ID when entering a business etc.)
This is what I meant about how can it work if we are not Communist and cannot force peoples telephony habits. How exactly does the Singapore app work?
I know GPS would be a waste of time. Personally I never have mine on unless I need a service that requires it. So surely its not based around peoples phone usage? I dont know enough about the apps hence the questions.
I think this was a good discussion on how the tracking could work and some of the issues involved