# PolyPhase — Generative Sequencer

> Generative sequencer for creating complex melodies and rhythms with MIDI and synth. (iPhone/iPad app by Marcos Kohler.)

- Source: https://appshunter.io/ios/app/polyphase/id1440617668 (this page in markdown: same URL + `.md`)
- Developer: [Marcos Kohler](https://appshunter.io/developer/1024379665)
- Category: Music, Entertainment
- Price: $19.99
- Rating: 4.60/5 from 26 App Store ratings · 21 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 35 MB
- Languages: American English
- Released: 2019-02-16
- Data updated: 2026-06-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/polyphase/id1440617668/reviews.md

## What is PolyPhase?

PolyPhase is a generative sequencer!

Melodies on a Master Track are created on the fly & copied, with phase offsets, to Follower Tracks. This structure, along with the interplay of various probabilities, leads to interwoven melodies and rhythms.

You can disable the generation of notes & draw your own, or select some of the randomization functions

Send MIDI to external hardware, other iOS instruments, or use the included wavetable synthesizer!

- 8 independent Sequencers with their own rate, direction, transposition & other properties
- Disable the generation of notes to draw your own, or use some of the intelligent functions provided
- Random Euclid & Drum Sequences
- The Wavetable Synth + FX lets you use PolyPhase even if you don't own any external Instruments
- Filter notes to a Global Key / Scale and toggle Chord Masks
- Save / Load Presets
- Snapshots for install recall of your Sequences
- Intelligently Randomize and Morph your Sequences & Synth sounds
- Accepts external MIDI clock & can provide clock to other devices
- Audiobus (Audio / State) & Inter-App Audio support
- Link Support

## Key features

- Generative melody creation with phase offsets
- 8 independent sequencers with customizable properties
- Draw own notes or use intelligent randomization
- Wavetable synthesizer with FX
- MIDI output and input support
- Global Key/Scale filtering and Chord Masks
- Save/Load presets and Snapshots

## Recent user reviews (10 of 21)

All indexed reviews: https://appshunter.io/ios/app/polyphase/id1440617668/reviews.md

### 1/5 — No Support

*2025-09-19, version 2.9.7*

Marcos is Not anwsering to Support questions and more😭

### 1/5 — Abandonware ⚰️☠️🚫✋🏼

*2025-07-10, version 2.9.7*

Should I assume y’all know to look to see when an app was last updated? 🤣

### 4/5 — Auv3 version please

*2023-07-05, version 2.9.7*

😩🙏🙏🙏💚

### 5/5 — Not just generative, but definitely incredible

*2023-02-25, version 2.9.7*

I have been trying loads of step seq to find one that is multitrack, quick and yet deep - this is the one. I had passed it by as I wasn’t looking for a generative seq, but it’s just as great at fixed patterns. The generative sequencer is, however, capable of great beauty- as is the lovely synth voice that can sound anything from brassy to plucky to smooth - somehow the sequencer just has the right balance of change and it feels connected to my actions and changes, instead of being an AI I just listen to. It’s brilliant, just brilliant.

### 4/5 — Sehr musikalischer Sequenzer

*2022-08-03, version 2.9.7*

… mit dem ich ständig arbeite. Umso bedauerlicher sind die Probleme beim Laden in AUM (im I-Pad 2022), was den Live-Einsatz unmöglich macht. Eine Behebung würde sofort den 5. Bewertungspunkt bringen- und noch mehr Sympathie für den Entwickler.

### 5/5 — Best of its kind for endless jam sessions

*2021-10-27, version 2.9.6*

I have been trying different generative apps for the iPad and this is the best I’ve tried so far. I doubt I’ll buy another since this does what I want.

It’s simple and immediately ready for use. Just press play.
It’s deep with all kinds of constraints to manipulate.
There is a nice webpage explaining how to use the features for anything I can’t immediately figure out.

Oh and one little thing I almost forgot to mention… It actually sounds interesting. These are not simple robotic arpeggios or non-musical sounding randomness. I can actually turn this on and just jam with my drum machine and guitar.

Thanks Devs. Good lookin’ out.

### 5/5 — Amazing app, endless exploration.

*2021-07-13, version 2.9.5*

I use this all the time to sequence software or hardware. It has a synth engine built in but it’s not about that. I would advise to leave it running your other gear. Had fun as soon as I installed it and I’m Still learning new things about it. Really can’t ask for more.

### 3/5 — AUv3 Please

*2021-01-20, version 2.9.2*

So much potential, so many possibilities if only the Developers would add AUv3, Ableton Link and separate track MIDI outputs we could modulate to our heart’s content. Alternatively a MIDI file export would be a useful stopgap solution until AUv3 becomes a necessity. Apart from that, I’m having a great time with it.

### 4/5 — Midi to trigger the internal beautiful sound engine .

*2021-01-15, version 2.7*

Love the app.... and would love an Auv3 update please...but also ...I love the sound engine of this treasure POLYPHASE...  is there any way of being able to play the synth engine as a synth as well, for playing live solos over the generated sound. Thanks.

### 3/5 — Keeps crashing

*2021-01-14, version 2.7*

This is a fantastic app but every time I try to have a session with it it keeps crashing. when I try to save or run an external synth crash. Have lost work. If they fix the bugs it would be a 5 star app ~ so far I can’t get anything created. I am on the latest iPad and iOS

## Frequently asked questions about PolyPhase

### What is PolyPhase?

PolyPhase is a generative sequencer that creates melodies on a master track and copies them with phase offsets to follower tracks. This, combined with probability, results in interwoven melodies and rhythms.

### How much does PolyPhase cost?

PolyPhase is a paid application, available for a one-time purchase of $19.99.

### What devices does PolyPhase support?

PolyPhase is currently optimized for iPad devices.

### Can I use PolyPhase offline?

The description does not specify offline functionality, but its core features like generative sequencing and synthesis suggest it can be used without an internet connection.

### Does PolyPhase have ads?

No, PolyPhase does not contain advertisements.

### How often is PolyPhase updated?

The latest version, 2.9.7, was released on November 3, 2021. This indicates a moderate update frequency.

### What is the age rating for PolyPhase?

PolyPhase has an age rating of 4+, making it suitable for a wide range of users.

### Can PolyPhase connect to external MIDI devices?

Yes, PolyPhase can send MIDI to external hardware and other iOS instruments, and it also accepts external MIDI clock.

## Version history (last 5 releases)

### 2.9.7 — 2021-11-03

- Added support for Ableton Link
- Added Link Quantum and Lookahead to Options
- Changed the default Jitter amount for Follower Tracks
- Note Filter can now Transpose sequences without Select New Chord Key / Scale enabled
- Minor UI Changes
- Bug Fixes

### 2.9.6 — 2021-09-28

- Changed Track Defaults when the App is launched
- Added Note Filter Option "Deselect Chord Chance"
- Added new Preset "One Step Ahead"
- Added support for the iPad Mini v6
- Minor UI Updates
- Bug Fix: Follower Track Jitter was not being recalled correctly
- Bug Fix: some Note Filter Options were not saved properly with Presets
- Bug Fix: when auto-selecting a Chord Key / Scale, the UI would not update properly

### 2.9.5 — 2021-06-04

- Bug Fix: MIDI would lag when sending the app to the background
- Added option to save / load the BPM with Presets

### 2.9.4 — 2021-02-20

- Bug Fix: MIDI would lag when moving the app to the background
- Improved Master Track note generation
- Improved Euclid Seq, Rnd Seq, Rnd Transp, Rnd Length, & Rnd Velocity functions
- New Defaults for Track Rate, Transposition & Velocity
- Velocity Humanization is now a constant value and not a % of the current Velocity
- Added advanced Note Filtering Options
- Increased max BPM to 300
- Minor UI Changes

### 2.9.3 — 2021-01-23

- Bug Fix: the Transport would not update
- Improved Note Filtering
- Minor UI Changes
- Optimizations

## Apps similar to PolyPhase

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Senode - Graph Sequencer](https://appshunter.io/ios/app/senode-graph-sequencer/id1298766877) | 4.6 (30) | $12.99 | Music |
| [ID700](https://appshunter.io/ios/app/id700/id1482698043) | 4.8 (125) | $12.99 | Music |
| [Moebius Lab](https://appshunter.io/ios/app/moebius-lab/id1108915352) | 4.9 (50) | $9.99 | Music |
| [cykle](https://appshunter.io/ios/app/cykle/id1187680637) | 4.7 (34) | $12.99 | Music |

## More apps by Marcos Kohler

- [Collider - For The Analog Rytm](https://appshunter.io/ios/app/collider-for-the-analog-rytm/id1024379666)
- [Oracle - For The Prophet 12](https://appshunter.io/ios/app/oracle-for-the-prophet-12/id1198283877)
- [Manifold - For The Octatrack](https://appshunter.io/ios/app/manifold-for-the-octatrack/id1339233919)
- [TriKey](https://appshunter.io/ios/app/trikey/id1406537477)
- [Harmonix](https://appshunter.io/ios/app/harmonix/id1444665934)

All apps by Marcos Kohler: https://appshunter.io/developer/1024379665

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-08.*