# Universal Zoom vs 国学经典之论语

The clearest difference is price: 国学经典之论语 at $0.99 against Universal Zoom's $5.99. 国学经典之论语 also leads on iOS requirement (12.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Universal Zoom costs $5.99 and 国学经典之论语 $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Universal Zoom | 国学经典之论语 |
| --- | --- | --- |
| Price | $5.99 | **$0.99** |
| Rating | **[4.8 (367 ratings)](https://appshunter.io/ios/app/universal-zoom-science-guide/id807673066/reviews)** | — |
| Number of ratings | **367** | — |
| Positive reviews | 96.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Paid | — |
| Size | 176 MB | 42 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GamifyIt](https://appshunter.io/developer/807673069) | [wenlin Huang](https://appshunter.io/developer/1108308410) |

## What reviewers say

### Universal Zoom

[App page](https://appshunter.io/ios/app/universal-zoom-science-guide/id807673066)

Explore the vastness of the universe, from subatomic particles to galaxies, with interactive scale comparisons and clear explanations. Discover scientific concepts visually and intuitively, making complex topics accessible to everyone. This app offers a deep dive into physics, biology, and astronomy with high-quality visuals and detailed information.

**Highlights:** Seamless zoom from Planck length to observable universe, Side-by-side object comparisons, Audio narration and accessible explanations, Exploration of particles, cells, planets, and galaxies, High-resolution images and original artwork, Available in 40 languages, Metric, imperial, or powers-of-ten units

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases:** none

**What reviewers like**

- 👍 Fascinating and informative
- 🚀 Smooth and seamless experience
- 💡 Puts things into perspective
- 👍 Great learning tool for all ages
- 👍 Visually appealing and well-designed

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔋 High battery consumption
- 🔇 Background music could be improved

**Reported bugs**

- Incorrect information for some objects
- Compatibility issues on older devices
- Typos and minor errors in text

**Requested features**

- Add more objects and comparisons
- Customizable object feature
- Support for more languages
- Ability to toggle between metric and imperial units
- Search and filtering options


### 国学经典之论语

[App page](https://appshunter.io/ios/app/id6624310029)

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

**In-app purchases:** none


## Frequently asked questions

### Is Universal Zoom free?

Universal Zoom costs $5.99, with no in-app purchases.

### Is 国学经典之论语 free?

国学经典之论语 costs $0.99, with no in-app purchases.

### Do Universal Zoom or 国学经典之论语 have ads?

Neither Universal Zoom nor 国学经典之论语 shows ads.

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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.*