Hinge Harp: Pocket Synth
Strum chords, no wrong notes
$4.99 · Designed for iPad. Not verified for macOS.
Hinge Harp is a pocket instrument designed for foldable iPhone. Fold it like a laptop, strum across the crease, and play chords on the pads below. Every note fits the key, so there are no wrong ones.
FOLD IT AND PLAY
On a foldable iPhone, the strum strip sits right in the fold. Hold a chord on the pads and run a finger across the crease to strum it. Stand the phone up the other way and the strip stands upright between your hands.
ALWAYS IN KEY
Pick a root and a scale: major and minor pentatonic, major, minor, Dorian, Mixolydian, blues or whole tone. The pads and the strip only play notes that belong, so anything you play sounds musical. Switch on chord mode and each pad plays a full triad.
SHAPE THE SOUND
Six sounds to start from: Dreamy, Punchy, Wobbly, Glassy, Warm bass and Retro. Drag the XY pad from dark to bright and from dry to wet, let it spring home, or draw a motion and it loops in time with the beat.
LOOP WHAT YOU MAKE
Set the tempo, add a drum groove, turn on the arpeggiator, and loop what you play. Record your takes and share them.
MAKE IT YOURS
Choose a color theme and an alternate app icon. Left-handed? Flip the layout so the pads sit on the left.
ALSO PLAYS ON iPHONE AND iPAD
No fold? Hinge Harp lays the strum strip, XY pad and pads out on any iPhone or iPad, in portrait or landscape.
No account, no ads, no subscription. Pay once and it's yours.
Made in New York by High Line Labs.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Hinge Harp now runs on iOS 26 as well as iOS 27, so more iPhones and iPads can play it.
The developer, Eric Kunz, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Eric Kunz
- Size
- 36.5 MB
- Category
- Music
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
English and 10 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 High Line Labs LLC
