# Cosmic Eye vs Universal Zoom

The clearest difference is review sentiment: Universal Zoom at 97% against Cosmic Eye's 38%. Universal Zoom also leads on rating (4.8 vs 2.9) and in-app purchases (none vs 1). Cosmic Eye's advantage is price ($0.99 vs $5.99) and update cadence (every 6 weeks vs every 4 months). On ads and device support there is nothing between them.

Cosmic Eye costs $0.99 and Universal Zoom $5.99 up front. Cosmic Eye sells 1 one-off in-app purchase. Universal Zoom asks for nothing beyond the download.

Universal Zoom holds the better App Store score, 4.8 against 2.9. Both are backed by a comparable volume of ratings — 89 and 365 respectively. Written reviews point the same way: 38% of Cosmic Eye's written reviews are positive against 97% of Universal Zoom's.

Cosmic Eye ships an update every 6 weeks, Universal Zoom every 4 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Cosmic Eye | Universal Zoom |
| --- | --- | --- |
| Price | **$0.99** | $5.99 |
| Rating | [2.9 (89 ratings)](https://appshunter.io/ios/app/cosmic-eye/id519994935/reviews) | **[4.8 (365 ratings)](https://appshunter.io/ios/app/universal-zoom-science-guide/id807673066/reviews)** |
| Number of ratings | 89 | **365** |
| Positive reviews | 38.2% of reviews | **96.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 42 MB | 175 MB |
| Requires iOS | **10.0** | 15.5 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Danail Obreschkow](https://appshunter.io/developer/448923432) | [GamifyIt](https://appshunter.io/developer/807673069) |

## What reviewers say

### Cosmic Eye

[App page](https://appshunter.io/ios/app/cosmic-eye/id519994935)

Explore the universe from subatomic particles to the observable cosmos with incredible zoom capabilities. View real astronomical and microscopic photographs alongside stunning computer-generated models. This app offers a journey through scales inspired by iconic scientific visualizations.

**Highlights:** Enormous zoom factors, Subatomic to cosmic scales, Real photographs, Computer model renderings, Inspired by 'Powers of Ten'

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cosmic Eye Pro | Free | one-time |

**What reviewers like**

- ✨ Visually captivating experience
- 🌌 Great for understanding scale
- 👍 Easy to use and understand
- 💡 Interesting concept and educational
- 🤩 Amazing and spectacular app

**What reviewers complain about**

- 💸 Requires multiple purchases
- 🤔 Misleading pricing and free versions
- 💰 Feels like a scam for money
- 😠 Frustrating upgrade system
- 👎 Poor implementation and graphics

**Reported bugs**

- Upgrade not working
- In-app purchase not working after payment
- App crashes on load
- Cannot move camera freely
- Low resolution graphics

**Requested features**

- Zoom out of the universe and into the atomic nucleus
- Zoom in to Planck length and out to beyond the universe
- Make it so we can zoom out of the universe and very far into the atomic nucleus
- Make it so we can zoom in all the way to Planck length and all the way out to Beyond the universe
- Make it so we can zoom out of the universe and very far into the atomic nucleus


### 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


## Frequently asked questions

### Is Cosmic Eye free?

Cosmic Eye costs $0.99, and also offers in-app purchases.

### Is Universal Zoom free?

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

### Which has better reviews, Cosmic Eye or Universal Zoom?

Universal Zoom is rated higher. Cosmic Eye averages 2.9 out of 5 from 89 ratings, while Universal Zoom averages 4.8 from 365 ratings.

### Do Cosmic Eye or Universal Zoom have ads?

Neither Cosmic Eye nor Universal Zoom shows ads.

### Which is updated more often, Cosmic Eye or Universal Zoom?

Cosmic Eye ships an update every 6 weeks, and Universal Zoom every 4 months. Most recently, Cosmic Eye was updated on October 26, 2026 and Universal Zoom on October 26, 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.*