It doesn’t? You could easily install the tracker on the client app, no need to do it server side. In fact I bet the app in question (Flo) was doing the upload to Meta client-side.
I'm guessing P2P technology isn't really sufficiently easy for developers yet, so when you have two users using an app that are supposed to share something between the two, most of us default to building server-side services. That + the "dynamic" list of articles and "help" Flo offer I'm guessing is the main reason for them having servers in the first place.
> It doesn’t?
I'm guessing P2P technology isn't really sufficiently easy for developers yet, so when you have two users using an app that are supposed to share something between the two, most of us default to building server-side services. That + the "dynamic" list of articles and "help" Flo offer I'm guessing is the main reason for them having servers in the first place.