# Gravity! vs Gravity 6D

The clearest difference is price: Gravity! at Free against Gravity 6D's $1.99. Gravity! also leads on update cadence (every 2 months vs every 16 months) and ratings volume (18 vs 1). Gravity 6D's advantage is rating (5.0 vs 3.9) and in-app purchases (none vs 1). On ads and device support there is nothing between them.

Gravity! is free to download; Gravity 6D costs $1.99 up front. Gravity! sells 1 one-off in-app purchase. Gravity 6D asks for nothing beyond the download.

Gravity 6D holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Gravity! has 18 ratings behind it against 1, so its average is the more settled of the two.

Gravity! ships an update every 2 months, Gravity 6D every 16 months. The most recent releases landed on October 7, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Gravity! | Gravity 6D |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [3.9 (18 ratings)](https://appshunter.io/ios/app/gravity/id738871919/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gravity-6d/id1620686014/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 73.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 16 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 17 MB | 49 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marc Davis](https://appshunter.io/developer/1010892850) | [Creetah Ltd.](https://appshunter.io/developer/1091214069) |

## What reviewers say

### Gravity!

[App page](https://appshunter.io/ios/app/gravity/id738871919)

Simulate the forces of gravity by flinging particles and observing their interactions. Create celestial bodies like planets and black holes, and customize their properties. Explore vast cosmic simulations with intuitive zoom and pan controls.

**Highlights:** Gravity simulation, Particle interaction, Create solar systems, Add black holes, Adjust particle properties, Zoom and pan controls

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gravity! Extended Edition | $0.99 | one-time |


### 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 Gravity! free?

Gravity! is free to download, with in-app purchases available.

### Is Gravity 6D free?

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

### Which has better reviews, Gravity! or Gravity 6D?

Gravity 6D is rated higher. Gravity! averages 3.9 out of 5 from 18 ratings, while Gravity 6D averages 5.0 from 1 ratings.

### Do Gravity! or Gravity 6D have ads?

Neither Gravity! nor Gravity 6D shows ads.

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

Gravity! ships an update every 2 months, and Gravity 6D every 16 months. Most recently, Gravity! was updated on October 7, 2026 and Gravity 6D on September 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*