# Gravity Machine vs Jacquardi4

The clearest difference is price: Jacquardi4 at $5.99 against Gravity Machine's $9.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Gravity Machine costs $9.99 and Jacquardi4 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Gravity Machine | Jacquardi4 |
| --- | --- | --- |
| Price | $9.99 | **$5.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gravity-machine/id6761209781/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Paid | — |
| Size | 12 MB | 12 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Touchmachines](https://appshunter.io/developer/1887356152) | [Satoshi Kajii](https://appshunter.io/developer/1777441634) |

## 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


### Jacquardi4

[App page](https://appshunter.io/ios/app/jacquardi4/id6786135940)

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Machine free?

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

### Is Jacquardi4 free?

Jacquardi4 costs $5.99, with no in-app purchases.

### Do Gravity Machine or Jacquardi4 have ads?

Neither Gravity Machine nor Jacquardi4 shows ads.

### Which is updated more often, Gravity Machine or Jacquardi4?

Gravity Machine ships an update weekly, and Jacquardi4 weekly. Most recently, Gravity Machine was updated on October 7, 2026 and Jacquardi4 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.*