# Nuclear vs SciQuiz

The clearest difference is in-app purchases: SciQuiz at none against Nuclear's 3. SciQuiz also leads on rating (4.6 vs 4.2). Nuclear's advantage is ads (none vs shown) and ratings volume (302 vs 53). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Nuclear sells 3 one-off in-app purchases. SciQuiz asks for nothing beyond the download.

SciQuiz holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Nuclear has 302 ratings behind it against 53, so its average is the more settled of the two. Written reviews complicate that: 69% of Nuclear's written reviews are positive against 67% of SciQuiz's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Nuclear | SciQuiz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (302 ratings)](https://appshunter.io/ios/app/nuclear/id509546625/reviews) | **[4.6 (53 ratings)](https://appshunter.io/ios/app/sciquiz-science-quiz/id1440078272/reviews)** |
| Number of ratings | **302** | 53 |
| Positive reviews | **69.5% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 55 MB | 297 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [ESCAPE VELOCITY LIMITED](https://appshunter.io/developer/331526972) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### Nuclear

[App page](https://appshunter.io/ios/app/nuclear/id509546625)

Explore the quantum world and learn about chemical elements by building atoms. This app visually models interactive atoms, allowing you to add or subtract subatomic particles to construct stable elements and unlock them on the periodic table.

**Highlights:** Interactive 3D atom visualization, Build chemical elements by adding/subtracting particles, Unlock elements on the periodic table, Explore atomic decay of isotopes, Learn about matter at the atomic scale

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Build All Elements | $2.99 | one-time |
| Discover Your Table | $2.99 | one-time |
| Discover All | $4.99 | one-time |

**What reviewers like**

- 🚀 Awesome visuals
- 🔍 Great learning tool
- 👍 Fun and interactive
- 💡 Helpful for understanding atoms

**What reviewers complain about**

- 🐛 Bugs and glitches
- 💰 Paywall for full access
- 🔒 Locked features
- 🤔 Inaccurate decay/reaction modeling

**Reported bugs**

- Can't exit element discovery screen
- Proton cap prevents reaching higher elements
- Certain elements cannot be created
- Crashes when trying to add particles to Ununoctium

**Requested features**

- Expand decay modes (alpha, beta, etc.)
- Add ability to create molecules
- Improve stability/decay simulation
- Add more explanations and tutorials


### SciQuiz

[App page](https://appshunter.io/ios/app/sciquiz-science-quiz/id1440078272)

Engage with over 45,000 science quizzes covering biology, chemistry, geography, and physics. Explore scientific concepts through interactive 3D models and discover the world of science with curated news summaries.

**Highlights:** Extensive quiz library (45,000+), Biology, Chemistry, Geography, Physics topics, Interactive 3D molecule models, Microcosm exploration, Science and health news summaries, Experiment-based learning

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Nuclear free?

Nuclear is free to download, with in-app purchases available.

### Is SciQuiz free?

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

### Which has better reviews, Nuclear or SciQuiz?

SciQuiz is rated higher. Nuclear averages 4.2 out of 5 from 302 ratings, while SciQuiz averages 4.6 from 53 ratings.

### Do Nuclear or SciQuiz have ads?

SciQuiz shows ads; Nuclear does not.

### Which is updated more often, Nuclear or SciQuiz?

Nuclear ships an update every 3 months, and SciQuiz every 3 months. Most recently, Nuclear was updated on October 20, 2026 and SciQuiz on October 15, 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.*