How do I register for The ONE Smart Piano app? Support January 03, 2018 16:55 Follow 1. Download the app from the app store 2. Once downloaded, open the app. 3. Enter an email address and create a password! Have more questions? Submit a request 1 Comments Date Votes 0 Brady Ryan January 02, 2018 17:22 The app or the piano is not compatible with the Samsung Galaxy 8 just FYI Please sign in to leave a comment.