Free
In-App Purchases

Details

  • Released
  • Updated
  • October 12, 2019
  • September 4, 2025
Poly 2 screenshot #1 for iPhone
Poly 2 screenshot #2 for iPhone
Poly 2 screenshot #3 for iPhone
Poly 2 screenshot #4 for iPhone
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About

This app generates evolving musical patterns and melodies using polyrhythms. It offers extensive sound manipulation with a sampler, multiple effects, and the ability to store numerous configurations. Users can also import their own sounds and integrate with other music production tools.

Generative polyrhythm sequencing
Up to 8 simultaneous sounds
Sampler with envelopes and filters
Randomize capabilities
Built-in delay, reverb, distortion, and EQ FX
AUv3, Audiobus, and IAA support
Import custom samples
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What users say

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What's New in Poly 2

2.5.2

September 4, 2025

Fixed a bug that would prevent playback when using the app as an AU MIDI FX

1

In-App Purchases

$11.99

Pro mode

Unlocks advanced features

User reviews

Old Reliable! :-)

Rediscovered, again. And, again, I grow and Poly 2 grows with me!

Every time I think I’ve come to a limitation of Poly 2, it turns out that it was really mine. lol

Right now I’m listening to one of the moody’ish ambient music loops I’e ever heard. ‘Swollen Pads’. I’ve made 6 variations of their original. So much fun on an iPhone 12 on iOS 17.6 and not a single problem and the ‘smartest’ iPhone music app ever! It’s as if I had given them both a features list as well as the perfect iPhone user interface, documentation, and sound quality. Right here in the ‘palm’ of my hand, watching the World translating it into sound.
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Unique & fun but some limitations

I recently returned to the Poly 2 sequencer and it still stands out as a unique, creative tool. It’s a really fun app to explore. Customization took a little time to figure out, but I’m very happy with the overall design and development.

One issue -which after 5+ years still hasn’t been addressed- is the lack of sustain/voice ring-out when the transport is stopped.

When playback is stopped—whether through the internal transport or an external hardware MIDI sequencer—the project’s voices do not sustain or ring out. I couldn’t find any updated preference settings to address this. Taking into consideration delay and reverb settings applied for each track, I would expect the voices from each of the eight tracks to sustain naturally when stopped or paused. To be candid, I had totally forgotten about this until I came back to the app.

A limited workaround is to switch to an empty pattern, which lets the active patterns ring out. However, this is restrictive since one of the 16 pattern slots must be allocated for this purpose. Even then, it doesn’t fully solve the issue: if the transport is stopped mid-sustain, the entire project still cuts off instead of letting the tails fade naturally. You have to wait until all voices finish ringing out before stopping. This is worth noting for live performance or recording, unless you’re employing an alternative DSP option to compensate.

Lastly, as an alternative workaround that retains use of all 16 patterns, you could modify the patterns in real time by changing their playback length values to something other than INF in order to close out the set. It feels a bit counterintuitive, but it’s another option. Just wanted to pass this along.

It’s not a dealbreaker for me—I can now address it with an analog pedal or by syncing another FX app—but I wonder if the absence of this feature has impacted the app’s ability to attract or retain users. I realize it may be too late to submit this as a feature request, but overall, this is still a great, unique app and a real joy to work with. Well done, James! I still get a lot out of this app.
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Wonderful Workflow

This is a great app. I never do reviews, but this is a lovely gem of software art. It opens up a completely novel and creative way of making music. Beautiful.

Lovely app

Enjoyed so many hours on this app, brilliant user interface that invites experimentation and exploration. My only gripe would be the sample importing tool could be better, feeling clunky compared to other apps. The ability to preview samples before importing them would help a lot when dealing with large sample packs on iPad. Doesn’t affect anything once you have the right samples loaded so I can only give this 5 stars.
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wow!

one of my fav music making apps. i really love it!

Developer apps

User experience

🐞

Reported Bugs

3 issues

In-app purchase not working for some users

Bug

MIDI connectivity issues with certain apps

Bug

Crashes upon opening for some users

Bug

Requested Features

8 requests

Ability to preview samples before importing

Feature

Autoslice/autochop functionality for samples

Feature

Support for larger sample imports and automatic slot filling

Feature

Granulizer effect

Feature

Note repeat and vinyl effects

Feature

More built-in effects and processing options

Feature

Ability to create and arrange full songs

Feature

M1 Mac compatibility

Feature

FAQ

What does Poly 2 do?

Poly 2 is a generative sequencer that creates evolving musical patterns and melodies. It utilizes the power of polyrhythms to generate unique sonic content, offering a wide range of sound manipulation and creative possibilities for musicians.

What are the key features of Poly 2?

Key features include the ability to use up to 8 different sounds simultaneously, store up to 16 configurations per project, and a versatile sampler with envelopes, filters, and loop crossfading. It also boasts randomization capabilities, built-in FX like delay and reverb, and support for AUv3, Audiobus, and IAA.

How is Poly 2 monetized?

The application is free to download and use, but it offers in-app purchases. This model allows users to try the core functionality and then purchase additional features or content if desired.

What platforms is Poly 2 compatible with?

Poly 2 supports AUv3, which means it can be used as an audio effect or instrument plugin within compatible iOS music applications. It also integrates with Audiobus and Inter-App Audio (IAA), allowing for seamless audio routing between different music apps on iOS devices.

Can I use my own sounds with Poly 2?

Yes, you can import your own samples into Poly 2. The app allows for sample import via iOS Files or through WIFI transfer, giving you the flexibility to incorporate your personal sound library into your generative sequences.