# Solar Coaster vs Solar System Clock

The clearest difference is update cadence: Solar System Clock at every 2 days against Solar Coaster's every 3 months. Solar Coaster's advantage is iOS requirement (14.0 vs 16.6). On price, ads, in-app purchases and device support 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 ships an update every 3 months, Solar System Clock every 2 days. The most recent releases landed on September 22, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Solar Coaster | Solar System Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/solar-coaster/id1218422388/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 37 MB | 5 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Steve Lidie](https://appshunter.io/developer/1869780159) | [Mateusz Andrzejczuk](https://appshunter.io/developer/1158375886) |

## 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


### Solar System Clock

[App page](https://appshunter.io/ios/app/solar-system-clock/id6746730661)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar Coaster free?

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

### Is Solar System Clock free?

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

### Do Solar Coaster or Solar System Clock have ads?

Neither Solar Coaster nor Solar System Clock shows ads.

### Which is updated more often, Solar Coaster or Solar System Clock?

Solar Coaster ships an update every 3 months, and Solar System Clock every 2 days. Most recently, Solar Coaster was updated on September 22, 2026 and Solar System Clock on August 15, 2026.

---

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