# Gravity Machine vs NotePulse

The clearest difference is price: NotePulse at $0.99 against Gravity Machine's $9.99. Gravity Machine's advantage is iOS requirement (15.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Gravity Machine costs $9.99 and NotePulse $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Gravity Machine ships an update weekly, NotePulse every 10 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | Gravity Machine | NotePulse |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| 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** | Every 10 days |
| Monetization | Paid | — |
| Size | 12 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Touchmachines](https://appshunter.io/developer/1887356152) | [Noorcon Inc.](https://appshunter.io/developer/656997884) |

## 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


### NotePulse

[App page](https://appshunter.io/ios/app/notepulse-midi-visualizer/id6810961670)

**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 NotePulse free?

NotePulse costs $0.99, with no in-app purchases.

### Do Gravity Machine or NotePulse have ads?

Neither Gravity Machine nor NotePulse shows ads.

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

Gravity Machine ships an update weekly, and NotePulse every 10 days. Most recently, Gravity Machine was updated on October 7, 2026 and NotePulse on October 7, 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.*