# Connected Earth vs Mars Book

The clearest difference is update cadence: Mars Book at every 13 months against Connected Earth's every 91 months. Mars Book also leads on iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Connected Earth ships an update every 91 months, Mars Book every 13 months. The most recent releases landed on August 31, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Connected Earth | Mars Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/connected-earth/id1220530870/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 91 months | **Every 13 months** |
| Monetization | Free | — |
| Size | 63 MB | 14 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celestial Dynamics AG](https://appshunter.io/developer/997250789) | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) |

## What reviewers say

### Connected Earth

[App page](https://appshunter.io/ios/app/connected-earth/id1220530870)

Explore global transportation and communication networks. Visualize roads, railways, shipping lanes, and flight routes, along with submarine internet cables, to understand Earth's interconnectedness. Gain a unified perspective of our planet and the systems that link us.

**Highlights:** Global transportation visualization, Communication network mapping, Interactive Earth view, Submarine cable layer, Unified planet perspective

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

**In-app purchases:** none


### Mars Book

[App page](https://appshunter.io/ios/app/mars-book/id1342509724)

**In-app purchases:** none


## Frequently asked questions

### Is Connected Earth free?

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

### Is Mars Book free?

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

### Do Connected Earth or Mars Book have ads?

Neither Connected Earth nor Mars Book shows ads.

### Which is updated more often, Connected Earth or Mars Book?

Connected Earth ships an update every 91 months, and Mars Book every 13 months. Most recently, Connected Earth was updated on August 31, 2026 and Mars Book on September 10, 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.*