os - Sound Machine Publisher: Coda Labs Incorporated Genre: Music Released: 8 Apr, 2017 Size: 23.5 MB Price: FREE! Click here to request a review of this app App Store Info Description os is a sound machine. Drag your finger across the screen to make dope sounds. What's New in Version 1.0 This app has been updated by Apple to display the Apple Watch app icon. Screenshots Screenshot 1 of 5