# Solar System&Celestial Objects vs Solar System Clock

The clearest difference is ads: Solar System Clock at none against Solar System&Celestial Objects's shown. Solar System Clock also leads on update cadence (every 2 days vs every 6 weeks). Solar System&Celestial Objects's advantage is iOS requirement (12.0 vs 16.6). On price, 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 System&Celestial Objects ships an update every 6 weeks, Solar System Clock every 2 days. The most recent releases landed on September 14, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Solar System&Celestial Objects | Solar System Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Size | 62 MB | 5 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [NIKI TECH](https://appshunter.io/developer/1788609104) | [Mateusz Andrzejczuk](https://appshunter.io/developer/1158375886) |

## What reviewers say

### Solar System&Celestial Objects

[App page](https://appshunter.io/ios/app/solar-system-and-celestial-objects/id6503188651)

**Features:** macOS Compatibility

**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 System&Celestial Objects free?

Solar System&Celestial Objects 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 System&Celestial Objects or Solar System Clock have ads?

Solar System&Celestial Objects shows ads; Solar System Clock does not.

### Which is updated more often, Solar System&Celestial Objects or Solar System Clock?

Solar System&Celestial Objects ships an update every 6 weeks, and Solar System Clock every 2 days. Most recently, Solar System&Celestial Objects was updated on September 14, 2026 and Solar System Clock on September 23, 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.*