# Solar System AR 4D vs Solar System Clock

The clearest difference is in-app purchases: Solar System Clock at none against Solar System AR 4D's 3. Solar System Clock also leads on update cadence (every 2 days vs every 46 months). Solar System AR 4D's advantage is iOS requirement (12.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Solar System AR 4D sells 1 one-off in-app purchase. Solar System Clock asks for nothing beyond the download.

Solar System AR 4D ships an update every 46 months, Solar System Clock every 2 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Solar System AR 4D | Solar System Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/solar-system-clock/id6746730661/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 122 MB | 5 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ibrahim Amer](https://appshunter.io/developer/1054899889) | [Mateusz Andrzejczuk](https://appshunter.io/developer/1158375886) |

## What reviewers say

### Solar System AR 4D

[App page](https://appshunter.io/ios/app/solar-system-ar-4d/id1593970513)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock | $5.99 | one-time |


### Solar System Clock

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

Visualize the current or historical positions of planets in our solar system. Explore future or past planetary alignments and identify optimal times for observing planets in the night sky.

**Highlights:** Real-time planet positions, Custom date selection, Past and future alignments, Optimal viewing time identification, Solar System visualization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar System AR 4D free?

Solar System AR 4D is free to download, with in-app purchases available.

### Is Solar System Clock free?

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

### Do Solar System AR 4D or Solar System Clock have ads?

Neither Solar System AR 4D nor Solar System Clock shows ads.

### Which is updated more often, Solar System AR 4D or Solar System Clock?

Solar System AR 4D ships an update every 46 months, and Solar System Clock every 2 days. Most recently, Solar System AR 4D was updated on November 3, 2026 and Solar System Clock 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.*