vrt.nu is the mobile app to watch flemish state television programs.
If you want to use the vrt.nu app abroad you have to prove you are a Belgian citizen.
There are several ways to do so (e.g. itsme), but none of these work if you have disabled custom push messages in the settings. So make sure you have enabled
- Pushberichten
- Ontvang meldingen op maat
There are no error messages pointing here (you just get a message that the program is not available abroad) and this is not in the documentation.