# Solar Coaster vs Graviton Sim

The clearest difference is rating: Solar Coaster at 5.0 against Graviton Sim's 1.0. Graviton Sim's advantage is update cadence (every 9 days vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Solar Coaster holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Solar Coaster ships an update every 3 months, Graviton Sim every 9 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Solar Coaster | Graviton Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/solar-coaster/id1218422388/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/graviton-sim/id6754208416/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free | Free |
| Size | 37 MB | 63 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Steve Lidie](https://appshunter.io/developer/1869780159) | [Scott Carnett](https://appshunter.io/developer/1550322381) |

## What reviewers say

### Solar Coaster

[App page](https://appshunter.io/ios/app/solar-coaster/id1218422388)

Visualize the precise movements of the Sun and Moon with 3D graphs, eclipse details, and rise/set times. This app offers offline calculations for celestial positions and moon phases, making it ideal for astronomy enthusiasts.

**Highlights:** 3D movement graphs, Eclipse information and circumstances, Rise and set times, Moon phase and illumination, Offline astronomical data, Local horizontal coordinate system

**Features:** Vision Pro support

**In-app purchases:** none


### Graviton Sim

[App page](https://appshunter.io/ios/app/graviton-sim/id6754208416)

Explore the fascinating world of gravity and orbital mechanics through interactive physics simulations. This application allows users to experiment with gravitational forces and observe celestial body interactions. It's designed for educational purposes, making complex concepts accessible.

**Highlights:** Gravity physics simulation, Orbital mechanics exploration, Celestial body interactions, Interactive experimentation, Educational tool

**In-app purchases:** none


## Frequently asked questions

### Is Solar Coaster free?

Solar Coaster is free to download, with no in-app purchases.

### Is Graviton Sim free?

Graviton Sim is free to download, with no in-app purchases.

### Which has better reviews, Solar Coaster or Graviton Sim?

Solar Coaster is rated higher. Solar Coaster averages 5.0 out of 5 from 2 ratings, while Graviton Sim averages 1.0 from 1 ratings.

### Do Solar Coaster or Graviton Sim have ads?

Neither Solar Coaster nor Graviton Sim shows ads.

### Which is updated more often, Solar Coaster or Graviton Sim?

Solar Coaster ships an update every 3 months, and Graviton Sim every 9 days. Most recently, Solar Coaster was updated on November 2, 2026 and Graviton Sim on October 30, 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.*