# Back in Time vs ZooDex

The clearest difference is price: ZooDex at Free against Back in Time's $7.99. ZooDex also leads on update cadence (every 2 weeks vs every 7 months) and device support (3 vs 1). Back in Time's advantage is ads (none vs shown). On in-app purchases there is nothing between them.

ZooDex is free to download; Back in Time costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Back in Time ships an update every 7 months, ZooDex every 2 weeks. The most recent releases landed on October 23, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Back in Time | ZooDex |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[4.7 (27 ratings)](https://appshunter.io/ios/app/back-in-time/id450345693/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 83.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 836 MB | 34 MB |
| Requires iOS | 16.0 | **12.4** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Landka](https://appshunter.io/developer/450345696) | [Bryan Oswaldo Gomez Perez](https://appshunter.io/developer/1573114808) |

## 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


### ZooDex

[App page](https://appshunter.io/ios/app/zoodex/id6444922314)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Back in Time free?

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

### Is ZooDex free?

ZooDex is free to download, with no in-app purchases.

### Do Back in Time or ZooDex have ads?

ZooDex shows ads; Back in Time does not.

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

Back in Time ships an update every 7 months, and ZooDex every 2 weeks. Most recently, Back in Time was updated on October 23, 2026 and ZooDex 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.*