Paid iPad app: http://itunes.apple.com/us/app/garageband/id408709785?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/garageband/id408709785?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/garageband/id408709785?mt=8&uo=4&at=10l6SU
Paid Mac program: http://itunes.apple.com/us/app/garageband/id408980954?mt=12&uo=4&at=10l6SU
Website: https://soundcloud.com/
Google Chrome app: https://chrome.google.com/webstore/detail/soundcloud/ipebkipbeggmmkjjljenoblnfaenambp