This is where the "app gap" hits us in every day life,
I've been a Tunein user for years on android and latterly WP, it was fine on 8.1 but now broken on 10, the update required to fix it could be weeks, months or never, it's just not important enough on W10m for the developer to bother, ive got the same problem with my banking app ( UK First Direct) that won't even launch , wunderlist live tiles broken. The HP printing app has only just been updated to work after weeks of freezing.
The point is this would not happen on Android or iOS, heavy weight apps would be fixed in a matter of hours if they were broken by an OS update or even updated prior to ensure compatability.
The response from First direct was.....We have no plans at present to support windows 10 mobile and had I considered getting an android phone ?
Can you imagine " We have no plans to support Marshmallow (or iOS 9)"..........