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

4.0 out of 5
185 Ratings

185 Ratings

letthemeatwords ,

Noise Reduction Feature ACTUALLY WORKS!

This app is super intuitive and very easy to learn. The basic version is pretty solid by itself, but upgrading to premium was worth it just for the noise reduction feature alone (the main reason why I downloaded this app). I tried it twice, the first time it took away all the background noise but my voice sounded like it was in a cave, and the second time it took away all the background noise and my voice was left sounding exactly the same. So there was some trial and error involved, but not much. The AI is not perfect, but that’s OK. It has worked for me once for so far, and that is more than I can say for any other voice recording app!

AC11367 ,

Great Interface for Audio Editing

The horizontal and vertical of aspect editing tracks are tailor-made for a touchscreen. Copying a portion of one track and paste it over the same location of another results in an overwrite, a user-friendly way to destructively edit. To get the same result on my Cubasis, I have to perform the extra step of splitting the audio of the destination track.

Most of my current usage for a DAW or an editor is to record my bass guitar to tracks that my friends provide. Hokusai does the job so well that most of the time, I don’t have to create it in Cubasis and import it to Hokusai. I could both create and edit my bass tracks with Hokusai.

Colton Lee Clement ,

It’s good but it needs improvement

I’ve been using this app for quite a while and so far, my only complaint is that you can’t just simply edit audio from a video on your phone. I always have to download my sounds and music off the internet with another app so I can turn it into an audio file. I shouldn’t have to worry about it when the app should be taking care of this. Also, there is a files app that apple has made where you can move videos to it and it works with Hokusai, but whenever I try to select what I want to edit, the thumbnail is faded and wont let me select it. The app is well organized and is easy to use, but if you can’t edit anything you have on your phone, then what’s the point in downloading the app?


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 $9.99
  2. Hokusai 2 Pro Pack (Upgrade) $4.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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