# Planet vs Solar System&Celestial Objects

The clearest difference is ads: Planet at none against Solar System&Celestial Objects's shown. Planet also leads on update cadence (every 3 weeks vs every 6 weeks). Solar System&Celestial Objects's advantage is iOS requirement (12.0 vs 15.4). 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.

Planet ships an update every 3 weeks, Solar System&Celestial Objects every 6 weeks. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Planet | Solar System&Celestial Objects |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 16 MB | 62 MB |
| Requires iOS | 15.4 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [David Borgelt](https://appshunter.io/developer/1494038380) | [NIKI TECH](https://appshunter.io/developer/1788609104) |

## What reviewers say

### Planet

[App page](https://appshunter.io/ios/app/planet-temperatures/id1588231638)

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar System&Celestial Objects

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Planet free?

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

### Is Solar System&Celestial Objects free?

Solar System&Celestial Objects is free to download, with no in-app purchases.

### Do Planet or Solar System&Celestial Objects have ads?

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

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

Planet ships an update every 3 weeks, and Solar System&Celestial Objects every 6 weeks. Most recently, Planet was updated on October 25, 2026 and Solar System&Celestial Objects on October 18, 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.*