# Prism MIDI Sequencer vs Polyrhythm Explorer

The clearest difference is price: Polyrhythm Explorer at $4.99 against Prism MIDI Sequencer's $19.99. Polyrhythm Explorer also leads on in-app purchases (none vs 5). Prism MIDI Sequencer's advantage is rating (4.8 vs 4.5). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Prism MIDI Sequencer costs $19.99 and Polyrhythm Explorer $4.99 up front. Prism MIDI Sequencer sells 5 one-off in-app purchases. Polyrhythm Explorer asks for nothing beyond the download.

Prism MIDI Sequencer holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 33 and 12 respectively. Written reviews complicate that: 86% of Prism MIDI Sequencer's written reviews are positive against 88% of Polyrhythm Explorer's, so the app with the better star average is not the one people write more warmly about.

Prism MIDI Sequencer ships an update every 2 weeks, Polyrhythm Explorer every 8 days. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Prism MIDI Sequencer | Polyrhythm Explorer |
| --- | --- | --- |
| Price | $19.99 | **$4.99** |
| Rating | **[4.8 (33 ratings)](https://appshunter.io/ios/app/prism-midi-sequencer/id6502302630/reviews)** | [4.5 (12 ratings)](https://appshunter.io/ios/app/polyrhythm-explorer/id6535682626/reviews) |
| Number of ratings | **33** | 12 |
| Positive reviews | 85.7% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 55 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tyler Quatraro](https://appshunter.io/developer/1724470298) | [PolyNome Ltd](https://appshunter.io/developer/988568871) |

## What reviewers say

### Prism MIDI Sequencer

[App page](https://appshunter.io/ios/app/prism-midi-sequencer/id6502302630)

This app is a powerful 16-track MIDI step sequencer designed for iOS devices. It allows users to create complex musical patterns with high resolution, elastic timing, and per-step control. It integrates with external synths and samplers, offering extensive features for melody, harmony, and drum sequencing.

**Highlights:** 16-track AUv3 MIDI step sequencer, High resolution and elastic timing, Per-step control and step FX, Scale modes and flow modes for tonal tracks, 16 mini-sequencers per drum track, LFOs, arpeggiator, and generative tools, Scene and mute profile performance modes

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LFO Extension | $4.99 | one-time |
| Step FX | $4.99 | one-time |
| Multi-Sequencer  Tone Tracks | $4.99 | one-time |
| Launchkey Mini MK4 Control | $4.99 | one-time |
| Euclidean Sequencer Extension | $4.99 | one-time |


### Polyrhythm Explorer

[App page](https://appshunter.io/ios/app/polyrhythm-explorer/id6535682626)

Learn and master complex rhythmic patterns with interactive guides and visual tools. Explore polyrhythms through written lessons, video tutorials, and customizable sound options. Ideal for musicians of all levels seeking to deepen their rhythmic understanding.

**Highlights:** Written guides and video tutorials, Linear and Grid Layout Modes, Voice Count for isolated rhythms, Customizable sounds (drums, keyboard), Polymeter visualization, Sample-accurate timing, Full-Screen Mode

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

**In-app purchases:** none


## Frequently asked questions

### Is Prism MIDI Sequencer free?

Prism MIDI Sequencer costs $19.99, and also offers in-app purchases.

### Is Polyrhythm Explorer free?

Polyrhythm Explorer costs $4.99, with no in-app purchases.

### Which has better reviews, Prism MIDI Sequencer or Polyrhythm Explorer?

Prism MIDI Sequencer is rated higher. Prism MIDI Sequencer averages 4.8 out of 5 from 33 ratings, while Polyrhythm Explorer averages 4.5 from 12 ratings.

### Do Prism MIDI Sequencer or Polyrhythm Explorer have ads?

Neither Prism MIDI Sequencer nor Polyrhythm Explorer shows ads.

### Which is updated more often, Prism MIDI Sequencer or Polyrhythm Explorer?

Prism MIDI Sequencer ships an update every 2 weeks, and Polyrhythm Explorer every 8 days. Most recently, Prism MIDI Sequencer was updated on October 14, 2026 and Polyrhythm Explorer on October 8, 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.*