It may be just you, but there really isn’t enough information here to be sure. Based on forum posts, it seems like most people aren’t having any difficulty. I’ve had no issues on multiple iOS (iPhone and iPad) devices with the S2 version 80.05.04.

Which app are you trying to download? Where are you trying to download it from? What device are you trying to download it to? What OS is running on that device? Have you tried to call Sonos Support directly to discuss it?