Hens HensenStudio
Only until Nov 30, 2026

ArrONEBlack Month

Buy now and save €150.

Your songwriting studio for the Mac: arrange songs, record vocals, mix, and export the lyric video at the end. One app, so you stay in the music.

ArrONE — the whole song at a glance
from Dec 1, 2026from €449
€299
You save €150

The offer ends in

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From December 1, 2026 ArrONE v1 starts at €449 and will cost more later. Pay once, no subscription, all v1 updates, even new plugins · incl. VAT · Secure payment via Stripe

All features included Up to 3 Macs Apple Silicon Bring your own audio tools
How the vocal comes together

From the first take to the finished choir

This is the heart of ArrONE. Just keep scrolling and watch your recordings turn, step by step, into a finished vocal production at the highest studio standard, all in one program.

Step 1

Sing as often as you like

Record pass after pass, and ArrONE keeps everything together in one take folder. In your headphones you hear yourself directly, with reverb if you like.

Step 2

One button, and every take sits

In the take folder you press PITCH. Now every single take gets tuned, not just one. The Tune slider sets how much.

TIMING pulls all takes together, GATE removes the silence between phrases, and BREATH keeps the breath in, quietly.

Step 3

You choose the lead vocal

Now you listen through the tuned takes and mark the best parts. Your lead vocal appears on the track above straight away and plays.

Step 4

The final polish with ArrTune

Edit with ArrTune opens the voice note by note: pitch, length, vibrato and level, right on the track. No transfer, no second program.

Doubling
The lead vocal in the take folderLead vocalThe finished double on its own trackDouble
3Voices
123
LeftRight
Step 5

The double at the push of a button

Create Doubling builds the double from the takes that did not end up in the lead. So these are real voices, sung by you.

You choose how many sing at once, three for example, and ArrONE spreads them across the stereo field. The more takes you sang, the more voices are possible.

Step 6

Finally, a choir from your own voice

Create Choir Instrument turns your takes into an instrument. You play the chords, and the Harmonizer sings them in your own voice, with the words of your lead vocal.

That way the recordings that would otherwise have gone unused become a whole choir in studio quality.

Step 7

And around it you build the whole song

ArrONE is a full DAW as well. Instruments, MIDI and audio, buses, mixer, effects and mastering are all there, so you can take the production all the way to the end right here.

See the offer
ARR View
A whole song in ArrONE with colour folders
Mixer
Mixer and bus mixer with master
Listen

Hear it yourself: ArrTune compared

First the untuned original recording, then every pitch twice: with ArrTune and with a high industry standard. Both start from the same raw recording, and all examples are level-matched. You can switch during playback, the position stays the same.

Original
+1 semitone
+2 semitones
+3 semitones
−1 semitone
−2 semitones
−3 semitones

Hear it yourself: the harmonizer

The same recording as above, turned into a choir by ArrChoir. Three engines at the same level. You can switch during playback, the position stays the same.

Original
Choir

ZERO responds without delay. HQ works from the learned recording. TAKES builds the voices from your takes.

Screens

Screenshots

Screenshots from current productions. Click opens the image at full size. Images may differ in detail from the current version, as ArrONE is under continuous development.

Plugins

Plugins

The plugins are built for ArrONE and run right inside the app. All of them are included in ArrONE.

ArrChannel – EQ view

ArrChannel Included

Channel strip with EQ, compressor, de-esser and a vari-mu stage in one chain. The EQ has up to seven bands and shows the spectrum live.

ArrSpace – delay and reverb

ArrSpace Included

Delay and convolution reverb in one plugin, in series or in parallel. Both blocks can run in reverse. The delay has ping-pong, tape saturation and ducking, the reverb more than a hundred rooms, halls and plates.

ArrSampler – a loaded piano instrument

ArrSampler Included

Sampler that loads instruments in the Logic Pro EXS format directly, with all zones and velocity layers. You build your own instruments by drag and drop, and the search covers all your libraries.

ArrDrums – drum kit with reverb

ArrDrums Included

Drum sampler for your own kits. Every key has its own settings and a send into the built-in reverb.

ArrChoir – choir with four parts

ArrChoir Included

A live choir from your lead vocal: you play chords, and four parts plus a pedal voice sing them with the lead's lyrics. Three play modes (live, around, diatonic), three sound engines up to your own takes, plus humanize, portamento and scenes.

ArrTune – notes of the lead vocal

ArrTune Included

Pitch correction for vocals with zero latency. The notes sit on the grid; you drag their pitch, length and vibrato, or let them snap to the key automatically. Plus a gate that turns pauses and breaths down separately.

ArrMaster – mastering chain

ArrMaster Included

The mastering chain on the master: a seven-band EQ with dynamic bands, drive with saturation, a desk with mono bass and stereo width, polish and a maximizer with a true-peak ceiling. LUFS and peak meters always in view.

ArrLift – one-knob build-up

ArrLift Included

A build-up effect with a single knob: the further you turn it, the thinner the dry signal and the bigger the hall behind it. Made for lifts into the chorus or the drop.

A word first

Hi, I'm Hens Hensen. Originally I just wanted to write a MIDI plug-in – and ended up building an entire DAW around it. It simply happened that way, and the ambition was there. Today ArrONE is my daily tool: every one of my productions is made with it, from the first chord to the finished mix. I work on the program every day and keep extending it. If a feature is missing or something in the workflow bothers you, write to me. Much of what is in there today came about exactly like that: from requests by people who make music with it.

Hens Hensen · Contact form

The idea

The idea behind ArrONE

I built ArrONE to save you a lot of busywork. Its structure is thought through from the start: everything connects, from the sum buses down to the stems. You get the final mix in several versions right away, whether instrumental, half playback or live playback, all automatic.

On top of that, plenty of features make producing easier. So you can get back to what it is really about: making music.

Features

Features

Track view

Audio and MIDI tracks, clips with fades and crossfades, take folders with comping, piano roll, colour folders, markers, tempo track. Tool field with marquee, eraser and mute, grid chip, auto-scroll, pinch zoom, freely assignable keys. Four DJ effect lanes with regions for hi-cut, low-cut, tempo-synced delay, tape stop, reverse, phaser, volume or one of your own plugins, each drawn as a curve and aimed at single buses or the master.

Vocals

The lead engine aligns timing and pitch of all takes in a take folder to their common average. The result is doublings that run in sync and can be bounced to a new track. Take folders can be linked as master and slave: doublings and backing vocals follow the timing of the lead vocal. Audio edit removes breaths, clicks and mouth noises. Vocal Space ducks the music under the voice, sidechain from any track.

Video & Lyrics

Video track with clips, photos, titles and motion. Lyrics are stamped onto the time with a keypress, export as LRC. Lyric video with effects straight to MP4.

Mixer & Buses

32 sum buses with names and colours. Channel mixer and bus mixer, both also as separate windows. Inserts, sends pre and post, pre-mix and master. Mix routing with stems, freeze and realtime freeze. Metering on the Logic scale with LUFS.

Plugins & Hardware

Audio Unit and VST3 load directly. Plugin presets, plugin roll, blacklist. Plus Melodyne support and support for Softube Console 1. Hardware controllers with channel follow, external synths with MIDI clock and audio return. Low-latency direct path for playing in.

Stems & Import

Stem separation into vocals, drums, bass and rest with the free add-on package. Tempo detection and follow tempo via varispeed. Import as track or take folder, compressed formats included.

Export & Workflow

Mixdown at the push of a button, mix variants as instrumental, half playback, live playback and full playback, stems export. Play from cursor or selection with pre-roll, cycle, transport window, song archive as ZIP, day and night mode, help search.

Price

Price and license

Black Month · only until Nov 30, 2026
€299from €449You save €150
Dec 1, 2026: from €449 · one-time, incl. VAT, no subscription · License terms
  • All features, no tiers, no add-on packs
  • Licence for up to 3 of your own Macs
  • All updates of ArrONE v1, including new plugins
  • Licence key by e-mail right away

Buy now Download trial for Mac Secure payment via Stripe

Good to know: ArrONE comes with eight plugins of its own, from channel strip and reverb to sampler, drums, tuning and mastering. Sounds and sample libraries are not included: ArrSampler and ArrDrums play your own instruments and kits. It is made for professionals who already own their instruments, effects and sounds and want to get to the finished song faster. Your Audio Unit and VST3 plugins load directly.

You can try ArrONE for free before you buy, with no time limit: the complete app. Only mixdown and every kind of export are locked in the trial and are unlocked with the license key.

System requirements

macOS14 or later
ProcessorApple Silicon, M1 or later
Memory8 GB RAM, 1 GB disk
AudioCore Audio, interface recommended
PluginsAudio Unit, VST3
StemsFree add-on package, installable in the app
FAQ

Frequently asked questions

Can I try ArrONE before buying?

Yes, for free and with no time limit. The trial is the complete app. Only mixdown and every kind of export stay locked until you activate a license key.

On how many computers can I use ArrONE?

On up to three of your own Macs. A Mac can be signed off again in the settings to free the slot.

Do I need an internet connection?

Only to activate. After that the app checks the licence occasionally at start-up and keeps working fully offline for up to 14 days.

Are there updates?

Yes, all updates of ArrONE v1 are included in the license, including newly added plugins, and are announced inside the app. A new major version such as ArrONE v2 is a separate product.

Does ArrONE run on Intel Macs or Windows?

No, currently only on Macs with Apple Silicon running macOS 14 or later.

Are instruments, effects or sounds included?

Eight plugins of its own are included: ArrChannel, ArrSpace, ArrSampler, ArrDrums, ArrChoir, ArrTune, ArrMaster and ArrLift. They are part of the app and run only inside ArrONE. Sounds and sample libraries are not included. ArrONE is aimed at professionals who already own their instruments and sounds and want a more modern workflow. Your Audio Unit and VST3 plugins load directly, your own samples come in via import.

Can I keep using my plugins?

Yes, Audio Unit and VST3 plugins load directly. Hardware controllers with channel follow are supported.

How do I get help?

By e-mail via the contact page. Tester feedback flows into the updates continuously.