Arch Carrier Instrument Lab
Draw shapes. Play their sound.
Free · Designed for iPad. Not verified for macOS.
Explore the sound of shapes: draw resonant bodies, play them by touch or MIDI, and record your own instruments.
Draw a shape. Tap it. Hear it ring.
Arch Carrier turns drawn shapes into a playable physical modelling instrument. A ring, a plate and a tuning fork each have their own resonances. Change the outline, cut a hole or move your strike, and explore how the sound changes.
PLAY AND SHAPE
• Strike up to three resonant bodies by touch.
• Add and subtract material without degrading untouched contours.
• Watch sand trace nodal patterns, and tilt your device to move it.
• Start from five seeds or save your own instruments.
TUNE AND SEQUENCE
• New shapes start at A3, 220 Hz.
• Tune by frequency, semitone or octave, with note names and cents.
• Audition a tuning or hear the natural model.
• Place four mallets and set strength and modal focus for each step.
• Choose seven mallet speeds, from 0.25× to 2×.
• Record looping mallet motion, synchronized to each rhythm.
MIDI PATHS
• Add editable traces with independent MIDI note ranges and channels.
• Each key selects a strike position; velocity sets its strength.
• Play from a connected MIDI keyboard while Arch Carrier is in the foreground.
• Show the paths when you need them, then hide the overlay while MIDI keeps playing.
KEEP YOUR INSTRUMENT
• Save shapes, tuning, rhythms, motion, tempo, damping, tone and MIDI mappings together.
• Resume your last instrument without automatic playback.
• Record stereo 24-bit WAV files and export them to Files or other apps.
Free. No account, advertising or in-app purchases. Designed for iPhone and iPad.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Jeroen Rombouts, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jeroen Rombouts
- Size
- 4.6 MB
- Category
- Music
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 StrangeLoop Software