Support
Questions, problems or ideas: write to hello@visionfirst.studio.
How do I play in the Room view?
Turn on Notes from the room, the camera button when a level starts or while it plays, or in Settings. It’s best with iPhone Duo folded like a laptop: the notes come out of the room on the upright half and land on the pads on the flat half.
The Room view shows nothing
PianoDuo needs camera access for it: open the iOS Settings app → Privacy & Security → Camera → PianoDuo. Nothing is recorded. Without the camera, the game plays on its dark stage.
I bought the Full Game on another device
Open Settings → Restore purchases, or tap Restore purchase on the Full Game offer. Use the same Apple Account you bought it with. Family Sharing is on, so your family can restore it too.
Refunds
Apple handles payments and refunds: reportaproblem.apple.com.