To sign out of your account, click the three dots in the top navigation header, then select ‘Sign out’. You will then be directed to a screen that confirms that you have signed out successfully.
To sign out of your account from the android app, go to your Settings page and click 'Sign Out'. You will then see a pop-up that asks 'Clear User Data? You will have to re-connect your SoundCloud account'. Once you click ‘OK’, you’ll be successfully signed out.
To sign out of your account from the iOS app, tap the person outline on the bottom of the screen. Then tap the More Options button (...) on the top right of the screen and select 'Sign Out'. You will then be successfully signed out.