Hokusai is a multitrack audio editor for iPhone, iPad or iPod touch. Record or import a track, and make it sound the way you want it to: not just trimming the ends, but full cut, copy, paste and delete, and a suite of filters and special effects available.

"Beautiful clutter-free interface" —

"Hokusai will convince you that audio was meant to be edited with a touch screen — it's just so natural within this app that you’ll find yourself consistently coming back to it." — iOS Music And You

Edit many tracks side-by-side, mix them together, and export to Wave or MP4 format — then transfer them to your computer, send them to another app on your device, or upload to cloud services.

Hokusai is streamlined to give you a clean, clear view of your tracks. Use the familiar pinch and swipe gestures to zoom right in and fiddle with fine detail, or step back to see the big picture. Select pieces of audio. Live "scrubbing" means you can hear the sound under your fingertip as you make your adjustments. And you needn't fear a bad edit with our full undo/redo support — even after closing your project.

Hokusai comes free with a set of useful tools such as fade in/out, normalise volume levels, reverse time, and basic synthesis. If you need more power, you can upgrade from inside the app to add new tools and effects, including: Per-track volume/mute/panning, selecting across multiple tracks at once, presets and favourites, grain synthesis, noise gating, time-stretching, pitch-bending, echo, reverb, modulation (AM & FM), resonance, distortion, grunge, vocal levelling, monster voice, high/low/band-pass/notch-cut filter and more — many of which can be previewed live.

What’s New

Version 2.2.10

• Various performance, user-experience and reliability improvements

Ratings and Reviews

4.1 out of 5
14 Ratings

14 Ratings

papaya817 ,

Great app, though it has a smalll but annoying bug

If I turn on “show suggested and recent app” from the ipad setting, then this app always creates an extra ghost icon on the dock in the portrait mode.

Developer Response ,

Hi! That does sound like it would be distracting — unfortunately it's not something I can help you with, as apps don't control what shows up in that space on the iPad's Dock, it's part of Siri's recommendations. You could try restarting your iPad ( but otherwise I think you'd need to contact Apple support about iPad Dock-related issues. But if you have any issues with Hokusai itself, please don't hesistate to get in touch!

HDGS47 ,

Excellent for my simple needs

I need little more than cut, paste and trim, for ease of which this app beats all others I have tried over the years. There is a reassuring attention to detail evident in the developer’s documentation and web site, which is often a measure of the reliability and quality of an app’s coding. Email support is prompt and efficient and the developer has not incorporated annoying ads or pop-ups. All good reason to strongly recommend this free app and justify the optional outlay for its many upgrade features.

Philly Feels Good ,

Handy if not immaculate

Kicked the can down the road which was ample sufficiency away from computer ✌️


Wooji Juice Ltd
32.4 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© 2011-2019 Wooji Juice
In-App Purchases
  1. Hokusai 2 Pro Pack $14.99
  2. Hokusai 2 Pro Pack (Upgrade) $7.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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