# Three vs Huygens3D

The clearest difference is ads: Three at none against Huygens3D's shown. Three also leads on update cadence (weekly vs every 25 months) and price ($0.99 vs $3.99). On in-app purchases and device support there is nothing between them.

Three costs $0.99 and Huygens3D $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Three ships an update weekly, Huygens3D every 25 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Three | Huygens3D |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/three-body-simulator/id6446972716/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 25 months |
| Monetization | Paid | — |
| Size | 72 MB | 147 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [骐显 梁](https://appshunter.io/developer/1314814852) | [Roland Wejner](https://appshunter.io/developer/601946624) |

## What reviewers say

### Three

[App page](https://appshunter.io/ios/app/three-body-simulator/id6446972716)

Explore celestial mechanics by simulating gravitational interactions between multiple celestial bodies. Users can add up to seven suns and an asteroid matrix to observe complex orbital behaviors and gravitational slingshot effects. The app allows for adjustments to gravity parameters for demonstration purposes.

**Highlights:** Multi-body gravitational simulation, Add up to 7 suns, Asteroid matrix simulation, Observe gravitational slingshots, Adjustable gravity parameters for demonstration, Enlarged volumes for better observation

**Features:** macOS Compatibility

**In-app purchases:** none


### Huygens3D

[App page](https://appshunter.io/ios/app/huygens3d/id6479824105)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Three free?

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

### Is Huygens3D free?

Huygens3D costs $3.99, with no in-app purchases.

### Do Three or Huygens3D have ads?

Huygens3D shows ads; Three does not.

### Which is updated more often, Three or Huygens3D?

Three ships an update weekly, and Huygens3D every 25 months. Most recently, Three was updated on October 30, 2026 and Huygens3D on October 27, 2026.

---

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