# Fractal Catalog vs Gravity 6D

The clearest difference is price: Gravity 6D at $1.99 against Fractal Catalog's $2.99. Gravity 6D also leads on iOS requirement (12.0 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Fractal Catalog costs $2.99 and Gravity 6D $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fractal Catalog ships an update every 10 months, Gravity 6D every 16 months. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Fractal Catalog | Gravity 6D |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gravity-6d/id1620686014/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 16 months |
| Monetization | — | Paid |
| Size | 4 MB | 49 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [Creetah Ltd.](https://appshunter.io/developer/1091214069) |

## What reviewers say

### Fractal Catalog

[App page](https://appshunter.io/ios/app/fractal-catalog/id1529064801)

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

**In-app purchases:** none


### Gravity 6D

[App page](https://appshunter.io/ios/app/gravity-6d/id1620686014)

Explore advanced physics with this application that allows for the simulation of up to six-dimensional gravity. Customize simulation parameters, adjust speed and visuals, and save your creations for later review.

**Highlights:** 6D mass particle simulations, Customizable simulation setup, Adjustable simulation speed, Visual preference settings, Save simulations

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

**In-app purchases:** none


## Frequently asked questions

### Is Fractal Catalog free?

Fractal Catalog costs $2.99, with no in-app purchases.

### Is Gravity 6D free?

Gravity 6D costs $1.99, with no in-app purchases.

### Do Fractal Catalog or Gravity 6D have ads?

Neither Fractal Catalog nor Gravity 6D shows ads.

### Which is updated more often, Fractal Catalog or Gravity 6D?

Fractal Catalog ships an update every 10 months, and Gravity 6D every 16 months. Most recently, Fractal Catalog was updated on October 9, 2026 and Gravity 6D on October 12, 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.*