# Gravity Machine vs PolyQuad

The clearest difference is price: PolyQuad at $4.99 against Gravity Machine's $9.99. PolyQuad also leads on ratings volume (3 vs 1). Gravity Machine's advantage is iOS requirement (15.0 vs 17.0). On rating, update cadence, ads and in-app purchases there is nothing between them.

Gravity Machine costs $9.99 and PolyQuad $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Gravity Machine against 5.0 for PolyQuad. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Gravity Machine | PolyQuad |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/gravity-machine/id6761209781/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/polyquad/id6803790337/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Paid | Paid |
| Size | 12 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Touchmachines](https://appshunter.io/developer/1887356152) | [LASZLO DOBROVOLSZKI](https://appshunter.io/developer/6779159106) |

## What reviewers say

### Gravity Machine

[App page](https://appshunter.io/ios/app/gravity-machine/id6761209781)

Create music by manipulating a miniature solar system. Fling orbs that bounce off walls, generating notes based on physics and chosen scales. Customize worlds, sounds, and tunings for unique generative compositions.

**Highlights:** Generative music creation, Physics-based orb interactions, Customizable scales and tunings, Multiple world shapes, AUv3 and standalone modes, MIDI output

**Features:** Vision Pro support

**In-app purchases:** none


### PolyQuad

[App page](https://appshunter.io/ios/app/polyquad/id6803790337)

Create complex analog-style synthesizer sounds using four independent voices. Design each voice with its own oscillator, filter, and envelopes, then combine them in various modes for massive layered textures, polyphonic chords, or unique stereo arrangements. Explore a vast library of presets or build your own from scratch.

**Highlights:** Four independent analog-style voices, Multiple oscillator and filter types per voice, Dual envelope generators per voice, Three voice combination modes (UNI, POLY, 2x2), Extensive LFO modulation capabilities, Integrated effects unit (reverb, delay, chorus, phaser, drive), 160 factory presets and user preset management

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

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Machine free?

Gravity Machine costs $9.99, with no in-app purchases.

### Is PolyQuad free?

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

### Which has better reviews, Gravity Machine or PolyQuad?

Gravity Machine and PolyQuad are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Gravity Machine or PolyQuad have ads?

Neither Gravity Machine nor PolyQuad shows ads.

### Which is updated more often, Gravity Machine or PolyQuad?

Gravity Machine ships an update weekly, and PolyQuad weekly. Most recently, Gravity Machine was updated on October 7, 2026 and PolyQuad on October 2, 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.*