# Back in Time vs Universal Zoom

The clearest difference is ratings volume: Universal Zoom at 356 against Back in Time's 25. Universal Zoom also leads on rating (4.8 vs 4.6) and review sentiment (97% vs 84%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Back in Time costs $7.99 and Universal Zoom $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Universal Zoom holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Universal Zoom has 356 ratings behind it against 25, so its average is the more settled of the two. Written reviews point the same way: 84% of Back in Time's written reviews are positive against 97% of Universal Zoom's.

Back in Time ships an update every 7 months, Universal Zoom every 4 months. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Back in Time | Universal Zoom |
| --- | --- | --- |
| Price | $7.99 | **$5.99** |
| Rating | [4.6 (25 ratings)](https://appshunter.io/ios/app/back-in-time/id450345693/reviews) | **[4.8 (356 ratings)](https://appshunter.io/ios/app/universal-zoom-science-guide/id807673066/reviews)** |
| Number of ratings | 25 | **356** |
| Positive reviews | 83.7% of reviews | **96.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 836 MB | 175 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPad | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Landka](https://appshunter.io/developer/450345696) | [GamifyIt](https://appshunter.io/developer/807673069) |

## What reviewers say

### Back in Time

[App page](https://appshunter.io/ios/app/back-in-time/id450345693)

Explore the history of the Universe, Earth, Life, and Civilization through an immersive, interactive journey. This app uses custom animations, timelines, and interesting facts to bring historical events to life. It's designed to help users understand the connections between events and see the bigger picture.

**Highlights:** Interactive timeline of events, Custom animations and videos, Over 350 remarkable images, Little-known interesting facts, Offline access, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Back in Time free?

Back in Time costs $7.99, with no in-app purchases.

### Is Universal Zoom free?

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

### Which has better reviews, Back in Time or Universal Zoom?

Universal Zoom is rated higher. Back in Time averages 4.6 out of 5 from 25 ratings, while Universal Zoom averages 4.8 from 356 ratings.

### Do Back in Time or Universal Zoom have ads?

Neither Back in Time nor Universal Zoom shows ads.

### Which is updated more often, Back in Time or Universal Zoom?

Back in Time ships an update every 7 months, and Universal Zoom every 4 months. Most recently, Back in Time was updated on October 7, 2026 and Universal Zoom on October 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.*