Oktopus Synthesizer

Omnipotential Instrument

$4.99 · Designed for iPad. Not verified for macOS.

An 8-block, 2384-parameter hybrid synth instrument with sampling, image-to-sample, modulation, arpeggiators, factory sounds, recording, spectrometer, and flexible FX. Oktopus is a deep synthesizer and AUv3 extension instrument with a modular spirit built for sound design, performance, and music creation in any compatible DAW or standalone. This app includes an AUv3 extension! Shape sounds across 8 synth blocks, combine oscillators and samples, route MIDI creatively, and build movement with LFOs, arpeggiators, modulation, and a flexible effects chain. Use Oktopus as a standalone instrument or load it inside AUv3-compatible iOS hosts / DAWs. Features: + 8-block synth architecture for layered and evolving sounds + MPE and MIDI input support + AUv3 instrument support for compatible hosts + Sample loading, slicing, and playback tools + Built-in recording and sample export workflow + Built-in spectrometer to clearly see what you're creating + Per-block arpeggiator and sequencing controls + LFOs, modulation routing, and performance macros + Factory presets and factory samples included + Share Voice Memos/Audio Files/Photos/Video clips to the app to extract audio for sampling. Supported files: AIFF, MP3, WAV, MP4, JPEG, HEIF, PNG, SVG + Import images to OSC and extract audio from the image + Flexible effects chain with EQ, distortion, bitcrusher, compressor, phaser, flanger, chorus, filter, delay, and reverb + Touch-friendly interface for iPhone and iPad music creation + Custom zoom level Oktopus is made for producers, composers, and experimental musicians who want a powerful synth environment that can move from quick ideas to detailed sound design.

  • 4.6
    out of 5
    7 Ratings

+ Image-to-audio - convert image to full spectrum or snap to specific chromatic keys + Bug fix for PW crossing 50% with a click in samples due to incorrect flag use + Held keys with Hold mode are seen if triggered with MIDI + Bug fix for spectrometer that slipped to bottom buttons

The developer, Vyacheslav Koristov, 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

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    Seller
    • Vyacheslav Koristov
    Size
    • 90.3 MB
    Category
    • Music
    Compatibility
    Requires iOS 15 or later.
    • iPhone
      Requires iOS 15 or later.
    • iPad
      Requires iPadOS 15 or later.
    • iPod touch
      Requires iOS 15 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Vyacheslav Anatolevich Koristov