Also shows how useless the SNCB International app is: despite having push notifications on, I haven't heard a peep and it doesn't even know about the delay yet.

NS International's infinite notifications after just one minute of delay might be annoying, but at least you'll get info. Only the Germans seem to have figured out an easy replanning interface, tho, that I'm still missing everywhere else.

Also, of course, you can't use the Belgian discount system in the NS app.

Now, I can just book a trip to Breda and use my OV-chip to check in with 100% discount there, but it simply shouldn't be this hard (and that's a separate ticket, so I'd lose out on delay compensation).

A nice example case for @erpu eventually, perhaps?