Octal is a compact music-making instrument built around eight responsive buttons. Its interface is designed so the notes or chords work together, while a movable control changes how they sound. Users can record a loop, layer drums or bass, edit individual bars, and arrange loops into a song. Synths, keys, drum kits, textures, and acoustic sounds are available through a sound wheel. The free version can save four loops and one song. A one-time full-version purchase unlocks unlimited projects, MIDI and stems export for use in a desktop DAW, MIDI output for other instruments, and tools for creating custom sounds. The listing says Octal collects no data.

Octal: Pocket Synth
A pocket music-making instrument for recording loops, arranging them into songs, and exporting audio or MIDI.
Overview
A closer look at Octal: Pocket Synth.
A closer look
App screenshots
Choose with confidence
The useful details.
What it does
- Play compatible notes or chords using an eight-button instrument interface.
- Record loops, layer drums or bass, and edit parts bar by bar.
- Arrange loops into a song and share audio or editable projects with other Octal users.
- Unlock MIDI, stems, MIDI output, custom sound tools, and unlimited saved projects.
A good fit for
- Beginners and musicians who want to sketch loops and song ideas on a phone.
Worth knowing
- The free version is limited to four saved loops and one song.
- The full version is a one-time purchase; the App Store description does not specify its price.
Frequently asked questions
Answers based on the app’s official listing and reviewed information.
What is Octal: Pocket Synth used for?
A pocket music-making instrument for recording loops, arranging them into songs, and exporting audio or MIDI.
What can you do with Octal: Pocket Synth?
Play compatible notes or chords using an eight-button instrument interface. Record loops, layer drums or bass, and edit parts bar by bar. Arrange loops into a song and share audio or editable projects with other Octal users. Unlock MIDI, stems, MIDI output, custom sound tools, and unlimited saved projects.
Who is Octal: Pocket Synth designed for?
Beginners and musicians who want to sketch loops and song ideas on a phone.
What should you know before downloading Octal: Pocket Synth?
The free version is limited to four saved loops and one song. The full version is a one-time purchase; the App Store description does not specify its price.
Does Octal: Pocket Synth include paid features?
A one-time full-version purchase unlocks unlimited projects, MIDI and stems export, MIDI output, and custom sound tools; local price is shown in the App Store.
Which platforms support Octal: Pocket Synth?
Greatooly's reviewed app information lists iOS.
Researched from official sources; this is not a hands-on review. Last checked 2026-11-04.
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