# Duality Shift vs Polybeep

The clearest difference is price: Duality Shift at Free against Polybeep's $4.99. Duality Shift also leads on rating (5.0 vs 4.7). Polybeep's advantage is ads (none vs shown) and update cadence (fortnightly vs every 25 months). On in-app purchases, device support and iOS requirement there is nothing between them.

Duality Shift is free to download; Polybeep costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Duality Shift holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Duality Shift ships an update every 25 months, Polybeep fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Duality Shift | Polybeep |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duality-shift-cadence-flux/id1480949911/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/polybeep/id6471223455/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 25 months | **Fortnightly** |
| Monetization | **Ad-supported** | Paid |
| Size | 78 MB | 101 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Luis Fraga](https://appshunter.io/developer/1175937121) | [Leonardo Demartino](https://appshunter.io/developer/1390797125) |

## What reviewers say

### Duality Shift

[App page](https://appshunter.io/ios/app/duality-shift-cadence-flux/id1480949911)

A mini rhythm game where players shift between two contrasting states to match the music's cadence. Master precision and timing through evolving soundscapes and responsive visuals. Experience harmony within duality.

**Highlights:** Dual state shifting mechanics, Rhythm-based gameplay, Evolving soundscapes, Responsive visuals, Precision timing challenges, Interactive musical experience

**Features:** macOS Compatibility

**In-app purchases:** none


### Polybeep

[App page](https://appshunter.io/ios/app/polybeep/id6471223455)

Create unique music with a polyrhythmic sound machine. Record or load samples, arrange them into looping shapes, and apply various effects. MIDI input is supported, and songs can be exported as WAV files.

**Highlights:** Polyrhythmic sound generation, Record microphone audio, Load sample files, Looping shape arrangement, Extensive audio effects, MIDI input support, Export to WAV

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

**In-app purchases:** none


## Frequently asked questions

### Is Duality Shift free?

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

### Is Polybeep free?

Polybeep costs $4.99, with no in-app purchases.

### Which has better reviews, Duality Shift or Polybeep?

Duality Shift is rated higher. Duality Shift averages 5.0 out of 5 from 1 ratings, while Polybeep averages 4.7 from 3 ratings.

### Do Duality Shift or Polybeep have ads?

Duality Shift shows ads; Polybeep does not.

### Which is updated more often, Duality Shift or Polybeep?

Duality Shift ships an update every 25 months, and Polybeep fortnightly. Most recently, Duality Shift was updated on November 3, 2026 and Polybeep on November 3, 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.*