# Universal Zoom vs CSCS Revision

The clearest difference is review sentiment: Universal Zoom at 97% against CSCS Revision's 50%. CSCS Revision's advantage is update cadence (every 5 weeks vs every 4 months) and price ($4.99 vs $5.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Universal Zoom costs $5.99 and CSCS Revision $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Universal Zoom ships an update every 4 months, CSCS Revision every 5 weeks. Both last shipped on November 1, 2026.

## The numbers

| Metric | Universal Zoom | CSCS Revision |
| --- | --- | --- |
| Price | $5.99 | **$4.99** |
| Rating | **[4.8 (365 ratings)](https://appshunter.io/ios/app/universal-zoom-science-guide/id807673066/reviews)** | — |
| Number of ratings | **365** | — |
| Positive reviews | **96.7% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 175 MB | 4 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [GamifyIt](https://appshunter.io/developer/807673069) | [James Kelly](https://appshunter.io/developer/825582894) |

## 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


### CSCS Revision

[App page](https://appshunter.io/ios/app/cscs-revision/id934401731)

Prepare for your CITB HS&E operatives and specialists test with a comprehensive question bank and AI tutor. This app offers unlimited revision tests and detailed progress tracking to help you pass your site card exam.

**Highlights:** Over 300 Health and Safety questions, AI tutor for study assistance, Unlimited revision test retakes, Customizable quiz settings, Timed or untimed tests, Review incorrect answers, Progress tracking by category

**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 CSCS Revision free?

CSCS Revision costs $4.99, with no in-app purchases.

### Do Universal Zoom or CSCS Revision have ads?

Neither Universal Zoom nor CSCS Revision shows ads.

### Which is updated more often, Universal Zoom or CSCS Revision?

Universal Zoom ships an update every 4 months, and CSCS Revision every 5 weeks. Most recently, Universal Zoom was updated on November 1, 2026 and CSCS Revision on November 1, 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.*