# Harmonicer vs Polyrhythm Explorer

The clearest difference is rating: Harmonicer at 4.7 against Polyrhythm Explorer's 4.5. Harmonicer also leads on update cadence (every 4 days vs every 8 days) and device support (4 vs 2). Polyrhythm Explorer's advantage is price ($4.99 vs $7.99). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Harmonicer costs $7.99 and Polyrhythm Explorer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Harmonicer holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 12 and 12 respectively. Written reviews complicate that: 80% of Harmonicer'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.

Harmonicer ships an update every 4 days, Polyrhythm Explorer every 8 days. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Harmonicer | Polyrhythm Explorer |
| --- | --- | --- |
| Price | $7.99 | **$4.99** |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/harmonicer/id6468485333/reviews)** | [4.5 (12 ratings)](https://appshunter.io/ios/app/polyrhythm-explorer/id6535682626/reviews) |
| Number of ratings | 12 | 12 |
| Positive reviews | 80.0% of reviews | **87.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 days |
| Monetization | Paid | Paid |
| Size | 23 MB | 5 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [PolyNome Ltd](https://appshunter.io/developer/988568871) |

## What reviewers say

### Harmonicer

[App page](https://appshunter.io/ios/app/harmonicer/id6468485333)

This app generates musical inspiration by combining MIDI quantization, harmonization, and arpeggiation. It offers extensive scale support and allows for the creation of complex chords and rhythmic patterns to enhance musical compositions.

**Highlights:** MIDI Quantizer with 20+ scales, Custom scale support, Harmonizer with up to 4 voices, Arpeggiator with 10 modes, Process MIDI from any source, Standalone use with internal keyboard

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Harmonicer free?

Harmonicer costs $7.99, with no in-app purchases.

### Is Polyrhythm Explorer free?

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

### Which has better reviews, Harmonicer or Polyrhythm Explorer?

Harmonicer is rated higher. Harmonicer averages 4.7 out of 5 from 12 ratings, while Polyrhythm Explorer averages 4.5 from 12 ratings.

### Do Harmonicer or Polyrhythm Explorer have ads?

Neither Harmonicer nor Polyrhythm Explorer shows ads.

### Which is updated more often, Harmonicer or Polyrhythm Explorer?

Harmonicer ships an update every 4 days, and Polyrhythm Explorer every 8 days. Most recently, Harmonicer was updated on September 17, 2026 and Polyrhythm Explorer on September 21, 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.*