# ChordUp vs polymachine

The clearest difference is price: polymachine at Free against ChordUp's $5.99. polymachine also leads on update cadence (weekly vs every 3 weeks). ChordUp's advantage is rating (4.4 vs 2.5) and ratings volume (41 vs 2). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

polymachine is free to download; ChordUp costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ChordUp holds the better App Store score, 4.4 against 2.5. That said, the two scores are not equally well evidenced: ChordUp has 41 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 94% of ChordUp's written reviews are positive against 100% of polymachine's, so the app with the better star average is not the one people write more warmly about.

ChordUp ships an update every 3 weeks, polymachine weekly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ChordUp | polymachine |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.4 (41 ratings)](https://appshunter.io/ios/app/chordup/id1058553903/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/polymachine/id6761276852/reviews) |
| Number of ratings | **41** | 2 |
| Positive reviews | 94.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | Paid |
| Size | 30 MB | 93 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmitrii Klochkov](https://appshunter.io/developer/1058553902) | [Mike Gao](https://appshunter.io/developer/384844113) |

## What reviewers say

### ChordUp

[App page](https://appshunter.io/ios/app/chordup/id1058553903)

This app is a musical instrument and MIDI controller that lets you play common chords instantly with a single touch. It offers multiple playing surfaces for chords, single notes, or strumming, and can control other music apps on the same or different devices.

**Highlights:** Instant chord selection with single touch, Play full chords, single notes, or strum, Control other music apps via MIDI, 108 available chords, 10 embedded instruments, Smart sustain and chord locking

**In-app purchases:** none


### polymachine

[App page](https://appshunter.io/ios/app/polymachine/id6761276852)

This app offers a unique approach to music creation by combining geometric principles with modular synthesis. Explore generative algorithmic drums, oscillators, and harmonies, with specialized tools for 808s and kick drum integration.

**Highlights:** Geometric music theory integration, Modular synthesis engine, Generative algorithmic drums, Oscillators and harmonies, 808 and kick drum linking, Log drum pattern generator

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChordUp free?

ChordUp costs $5.99, with no in-app purchases.

### Is polymachine free?

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

### Which has better reviews, ChordUp or polymachine?

ChordUp is rated higher. ChordUp averages 4.4 out of 5 from 41 ratings, while polymachine averages 2.5 from 2 ratings.

### Do ChordUp or polymachine have ads?

Neither ChordUp nor polymachine shows ads.

### Which is updated more often, ChordUp or polymachine?

ChordUp ships an update every 3 weeks, and polymachine weekly. Most recently, ChordUp was updated on October 26, 2026 and polymachine on October 25, 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.*