Support

Questions, problems or ideas? Email antonio.oliver@gmail.com and include your device (iPhone or iPad), iOS version and, if you can, the piano or MIDI keyboard you use.

Connect a MIDI piano

Piano Duel is designed for a real MIDI piano or keyboard over USB or Bluetooth. You can also play on the on-screen keys.

Bluetooth: Turn on Bluetooth MIDI in the piano’s settings, then open Piano Duel. Allow Bluetooth when iOS asks. In iOS Settings, check that Piano Duel has Bluetooth permission.
If the piano does not appear, turn the piano off and on, toggle Bluetooth, or close and reopen the app. Some pianos have a separate “Bluetooth MIDI” mode, not only ordinary Bluetooth audio.
USB: Use a data cable (not a charge-only cable). On iPhone and iPad models without a USB-C instrument cable of their own, you may need Apple’s USB adapter or a USB-C hub that supports MIDI.
The menu shows when a piano is connected. You do not need an account to play solo, or to play two players on one keyboard on iPad.

Restore a purchase

If you already bought “Unlock all songs” and the songs are locked again (for example after reinstalling the app or on a new device with the same Apple ID):

Open Settings in Piano Duel.
Use Restore Purchases. A short parental gate (a simple arithmetic question) appears first.
Sign in with the Apple ID that made the purchase, if iOS asks.
If it still fails, email antonio.oliver@gmail.com and we will help you check it.

FAQ

Which devices does it run on?

iPhone and iPad, iOS 17 or later, in landscape. Two players on one keyboard (duel, co-op and duet) are available on iPad. Solo and online duel work on iPhone and iPad.

Do I need a real piano?

The game is made for a USB or Bluetooth MIDI piano, but you can play with the on-screen keyboard.

How does online play work?

Online duel uses Apple Game Center. Sign in with Game Center, invite a friend or use auto-match, then each of you plays the same song. The higher accuracy wins. You need a Game Center account; Piano Duel does not create a separate login.

How do I unlock more songs?

Three songs are free: Twinkle Twinkle, Mary Had a Little Lamb and Ode to Joy. The rest unlock with a one-time purchase, “Unlock all songs”. There is no subscription and no ads. Purchases are behind a parental gate.

Is there advertising or tracking?

No ads and no tracking. See the privacy policy.