VisionPiano 3D was approved and released for Apple TestFlight and is available for installation on a real device.
Note: TestFlight is Apple’s preferred method for performing beta tests and available on all Apple devices. A TestFlight beta version generally has a lifespan of 90 days.
Apple TestFlight Link: https://testflight.apple.com/join/up4OYfSF
VisionPiano 3D Public Beta Test