Actually the “private match” option is inherited from the registration. But you can also set it in the app when posting match results to the PractiScore website.
It is more elaborate than that.
There is a local scorelog that stays on device and can be placed to a removable SD card.
Also, there is also an option for “online” scorelog, which is pushing every approved stage score to a separate website where competitors can look at these “verifications” and that website also pushes emails to individual competitors. The stage scoring devices has to have internet access for this to work.
The PractiScore Competitor app is capable of using these stage scores to assemble match results when full results aren’t posted from the app.