Layered looping workflow
Use up to eight tracks for synths, samples, and multiple drum kits at once, then record and overdub while the loop continues running.
ARC-24
ARC-24 is a groovebox app for iPhone and iPad to create synth, sample, drum, and loop-based music sketches, with iCloud sync and WAV or AAC export.
Overview
ARC-24 is a groovebox app for iPhone and iPad that combines synths, samples, drums, a sampler, arpeggiation, and loop-based song building in one instrument. Its interface centers on notes, chords, drums, and sampler performance, with mixer, effects, and sound design controls kept close at hand.
The app is designed for building patterns, layering loops, and arranging them into songs on mobile devices. It supports iCloud sync between iPhone and iPad, optional MIDI input for external controllers, and audio export in WAV or AAC when you want to save a result outside the app.
Core features
Synth sound design
Build synth sounds with dual oscillators, an envelope, a filter, motion control, and a built-in effects rack. Built-in Recipes provide starting points, and you can save your own.
Sampler with live chop
Import audio or record from the microphone, place sounds on a 4×4 pad grid, play one-shots or pitched notes, and chop loops into new pads.
Drum kit layering
Load drum kits on any track and layer more than one drum machine in the same project. Each drum track includes EQ and effects.
Loop scenes and song arrangement
Create multiple loops, move between scenes during performance, and use Song Mode to arrange those loops into a full song.
Performance and editing tools
Use Pulse or latch curated arpeggiator patterns on synth tracks, then quantize or humanize notes per track and edit events in the grid.
Typical use cases
Loop-based sketching
Build drum patterns, bass lines, and sampled parts in one project, then keep overdubbing as the loop plays.
Designing custom sounds
Shape synth parts with oscillators, filters, motion, and effects, then save your own sound settings for later sessions.
Sampling and reworking audio
Import recordings, chop loops into fresh pads, and trigger them from the 4×4 sampler grid for finger-based performance.
Song arrangement from loops
Arrange scenes into a longer structure when a short loop needs to become a full track.
Mobile performance setup
Use the app on iPhone or iPad with optional MIDI input when you want external control during performance or writing.
Pros and Cons
Pros
- Combines synths, samples, drum kits, and looping in a single iPhone and iPad app.
- Supports iCloud sync between iPhone and iPad.
- Exports finished audio as WAV or AAC.
- Includes performance-oriented tools such as an arpeggiator, Pulse, song scenes, and live loop switching.
- Offers direct audio import, microphone recording, and live chopping in the sampler.
Cons
- The app requires iOS 18.1 or later.
- The pricing page at the provided URL returns 404, so pricing structure is not documented on the fetched pages.
- The source only confirms optional MIDI input; other integrations are not documented on the fetched pages.
FAQ
What is ARC-24?
ARC-24 is described as a groovebox for iPhone and iPad. It combines synth tracks, sample playback, drum kits, a sampler with live chopping, drone, and layered loops in one app.
What devices and iOS version does ARC-24 support?
The product page says ARC-24 requires iOS 18.1 or later and is available on the App Store for iPhone and iPad.
Can projects sync between devices?
Yes. The page says you can save as many songs as you like and everything syncs through iCloud between iPhone and iPad.
What export formats are available?
ARC-24 supports exporting audio as WAV or AAC when you want to keep a finished moment.
Does ARC-24 work with external controllers or other integrations?
The page notes optional MIDI input for external controllers, but it does not document other integrations on the source pages provided.
Quick Facts
- Category
- Music creation app
- Platform
- iPhone and iPad
- Requirements
- iOS 18.1 or later
- Export formats
- WAV, AAC
- Sync
- iCloud between iPhone and iPad
- Source domain
- arc24.app
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