Tracks need to have 'Apps enabled' to be played on our apps. To check this, go into the track's edit mode on the actual site and under Advanced Settings, make sure that 'Apps enabled' is checked (just like in the image below)!
If you can't play another person's track on the iPhone app, it's most likely because they don't have apps enabled.
Because they are third-party apps, the best thing to do is to contact the company or person who developed it. You can find the app in our App Gallery and a link to the developer will be at the byline.
Due to changes to App Store regulations made by Apple, third party apps distributed through the Mac App Store are no longer permitted to use the media keys on Apple computers.
Because of this, it is not possible to control the SoundCloud Mac app using the play, pause, and forward, and back keys on Macs.