# DIY Sun Science vs Solar System Clock

The clearest difference is update cadence: Solar System Clock at every 2 days against DIY Sun Science's every 6 months. DIY Sun Science's advantage is iOS requirement (12.0 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.

DIY Sun Science ships an update every 6 months, Solar System Clock every 2 days. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | DIY Sun Science | Solar System Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (21 ratings)](https://appshunter.io/ios/app/diy-sun-science/id836712493/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 134 MB | 5 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) | [Mateusz Andrzejczuk](https://appshunter.io/developer/1158375886) |

## What reviewers say

### DIY Sun Science

[App page](https://appshunter.io/ios/app/diy-sun-science/id836712493)

Explore the Sun through hands-on activities and real-time data. This app offers 15 engaging experiments, live solar images from NASA, and educational videos to foster understanding of solar science for families and educators.

**Highlights:** 15 hands-on solar activities, Step-by-step instructions, Live Sun images from NASA SDO, NASA Earth and space observatory images, NASA solar videos, Learn about solar activity

**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 DIY Sun Science free?

DIY Sun Science 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 DIY Sun Science or Solar System Clock have ads?

Neither DIY Sun Science nor Solar System Clock shows ads.

### Which is updated more often, DIY Sun Science or Solar System Clock?

DIY Sun Science ships an update every 6 months, and Solar System Clock every 2 days. Most recently, DIY Sun Science was updated on October 17, 2026 and Solar System Clock on October 9, 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.*