I agree we've had that problem with our app Denso as well (a video app) - people would complain that videos play but with no sound and almost always it was beca

I agree we've had that problem with our app Denso as well (a video app) - people would complain that videos play but with no sound and almost always it was because people had the device muted. We eventually shipped an update which ignored the mute setting while video playback.