Decent app for interacting with Bose Revolve speaker(s) and others. Still waiting to add 2nd speaker and do stereo sync, but that is main reason for me to DL app. Hoping the 2 speaker sync will then work with regular BT operation, so we'll see. UPDATE: App is worthless in using 2 matching Bose speakers. Very difficult to sync 2nd speaker, and when you do, it drops one or both speakers almost immediately. I purchased a 2nd (expensive) Bose speaker solely for this capability, and it doesn't work.