# PlanetenSpielundApp2b vs Solar System Clock

The clearest difference is rating: PlanetenSpielundApp2b at 3.5 against Solar System Clock's 3.0. Solar System Clock's advantage is update cadence (every 2 days vs every 7 months) and iOS requirement (16.6 vs 18.0). 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.

PlanetenSpielundApp2b holds the better App Store score, 3.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

PlanetenSpielundApp2b ships an update every 7 months, Solar System Clock every 2 days. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PlanetenSpielundApp2b | Solar System Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/planetenspielundapp2b/id1494749871/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/solar-system-clock/id6746730661/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 152 MB | 5 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Steffen Rokosch](https://appshunter.io/developer/1448755222) | [Mateusz Andrzejczuk](https://appshunter.io/developer/1158375886) |

## What reviewers say

### PlanetenSpielundApp2b

[App page](https://appshunter.io/ios/app/planetenspielundapp2b/id1494749871)

An educational game designed for children to explore and learn about celestial bodies, including planets, moons, stars, and black holes. It features a gravitation arena to demonstrate Newton's laws of motion.

**Highlights:** Learn about planets, moons, and stars, Explore black holes and nebulae, Gravitation arena for physics demonstrations, Interactive celestial body learning, Newton's laws of motion explained

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 PlanetenSpielundApp2b free?

PlanetenSpielundApp2b 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.

### Which has better reviews, PlanetenSpielundApp2b or Solar System Clock?

PlanetenSpielundApp2b is rated higher. PlanetenSpielundApp2b averages 3.5 out of 5 from 2 ratings, while Solar System Clock averages 3.0 from 1 ratings.

### Do PlanetenSpielundApp2b or Solar System Clock have ads?

Neither PlanetenSpielundApp2b nor Solar System Clock shows ads.

### Which is updated more often, PlanetenSpielundApp2b or Solar System Clock?

PlanetenSpielundApp2b ships an update every 7 months, and Solar System Clock every 2 days. Most recently, PlanetenSpielundApp2b was updated on October 15, 2026 and Solar System Clock on October 28, 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.*