Actually only -flarm- and ADSB- traffic are displayed when using the app
Also 12 other protocols (fanet, skytraxx, ogn tracker, …) and more or less 20% mode S by MLAT.
Only secondary radar are able to see mode S.
we are in contact in different countries to discuss about the potentially sharing of mode S. It will be a great step for security. But not easy to discuss with administration as you can imagine.
But stay posted, world is changing