# Universal Zoom vs Interactive Solar System

The clearest difference is update cadence: Interactive Solar System at fortnightly against Universal Zoom's every 4 months. Interactive Solar System also leads on price ($1.99 vs $5.99) and iOS requirement (12.0 vs 15.5). Universal Zoom's advantage is device support (4 vs 2). On ads and in-app purchases there is nothing between them.

Universal Zoom costs $5.99 and Interactive Solar System $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Universal Zoom ships an update every 4 months, Interactive Solar System fortnightly. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Universal Zoom | Interactive Solar System |
| --- | --- | --- |
| Price | $5.99 | **$1.99** |
| Rating | **[4.8 (356 ratings)](https://appshunter.io/ios/app/universal-zoom-science-guide/id807673066/reviews)** | — |
| Number of ratings | **356** | — |
| Positive reviews | 96.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 175 MB | 52 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [GamifyIt](https://appshunter.io/developer/807673069) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## What reviewers say

### Universal Zoom

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

Explore the universe's vastness and intricacy through interactive visual comparisons. Seamlessly zoom from subatomic particles to the observable universe, gaining intuition about scale and size with stunning imagery and clear explanations.

**Highlights:** Seamless zooming across scales, Visual comparisons of objects, Jargon-free scientific explanations, Audio narration, Over 270 objects presented to scale, Multi-language support

**Features:** macOS Compatibility

**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


### Interactive Solar System

[App page](https://appshunter.io/ios/app/interactive-solar-system/id1240878228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Universal Zoom free?

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

### Is Interactive Solar System free?

Interactive Solar System costs $1.99, with no in-app purchases.

### Do Universal Zoom or Interactive Solar System have ads?

Neither Universal Zoom nor Interactive Solar System shows ads.

### Which is updated more often, Universal Zoom or Interactive Solar System?

Universal Zoom ships an update every 4 months, and Interactive Solar System fortnightly. Most recently, Universal Zoom was updated on September 24, 2026 and Interactive Solar System on September 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.*