# Poly 2 vs Helio Sequencer

The clearest difference is in-app purchases: Helio Sequencer at none against Poly 2's 1. Helio Sequencer also leads on iOS requirement (11.0 vs 16.6). Poly 2's advantage is rating (4.8 vs 4.4) and ratings volume (686 vs 13). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Poly 2 sells 1 one-off in-app purchase. Helio Sequencer asks for nothing beyond the download.

Poly 2 holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Poly 2 has 686 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 84% of Poly 2's written reviews are positive against 86% of Helio Sequencer's, so the app with the better star average is not the one people write more warmly about.

Poly 2 ships an update every 4 weeks, Helio Sequencer every 3 months. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Poly 2 | Helio Sequencer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (686 ratings)](https://appshunter.io/ios/app/poly-2/id1477029326/reviews)** | [4.4 (13 ratings)](https://appshunter.io/ios/app/helio-sequencer/id6502380900/reviews) |
| Number of ratings | **686** | 13 |
| Positive reviews | 84.1% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 153 MB | 7 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [James Milton](https://appshunter.io/developer/581503621) | [Peter Rudenko](https://appshunter.io/developer/943796587) |

## What reviewers say

### Poly 2

[App page](https://appshunter.io/ios/app/poly-2/id1477029326)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro mode | $11.99 | one-time |

**What reviewers like**

- 🚀 Unique, creative, and powerful tool
- 👍 Intuitive and user-friendly interface
- 🎨 Excellent for ambient, experimental, and generative music
- 🎹 Great for drum grooves and rhythmic patterns
- 💻 Seamless integration with external hardware and software

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🔇 Lack of sustain/voice ring-out when transport is stopped
- 📺 Small interface elements can be difficult to use on iPad
- 🔌 Compatibility issues with some third-party apps

**Reported bugs**

- In-app purchase not working for some users
- MIDI connectivity issues with certain apps
- Crashes upon opening for some users

**Requested features**

- Ability to preview samples before importing
- Autoslice/autochop functionality for samples
- Support for larger sample imports and automatic slot filling
- Granulizer effect
- Note repeat and vinyl effects


### Helio Sequencer

[App page](https://appshunter.io/ios/app/helio-sequencer/id6502380900)

A free and open-source music sequencer designed for hobbyist composers, game developers, and indie artists. Comprehensive documentation is available to help users get started with its features.

**Highlights:** Open-source music sequencer, Aimed at hobbyist composers, Supports game developers, For indie artists, Includes documentation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Poly 2 free?

Poly 2 is free to download, with in-app purchases available.

### Is Helio Sequencer free?

Helio Sequencer is free to download, with no in-app purchases.

### Which has better reviews, Poly 2 or Helio Sequencer?

Poly 2 is rated higher. Poly 2 averages 4.8 out of 5 from 686 ratings, while Helio Sequencer averages 4.4 from 13 ratings.

### Do Poly 2 or Helio Sequencer have ads?

Neither Poly 2 nor Helio Sequencer shows ads.

### Which is updated more often, Poly 2 or Helio Sequencer?

Poly 2 ships an update every 4 weeks, and Helio Sequencer every 3 months. Most recently, Poly 2 was updated on October 8, 2026 and Helio Sequencer on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*