# Mars Book vs Mars LTE

The clearest difference is update cadence: Mars Book at every 13 months against Mars LTE's every 43 months. Mars Book also leads on iOS requirement (9.0 vs 15.4). 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.

Mars Book ships an update every 13 months, Mars LTE every 43 months. The most recent releases landed on September 10, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | Mars Book | Mars LTE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mars-lte/id1623085876/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 13 months** | Every 43 months |
| Monetization | — | Free |
| Size | 14 MB | 3 MB |
| Requires iOS | **9.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [Taylan Atasoy](https://appshunter.io/developer/1204464263) |

## What reviewers say

### Mars Book

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

**In-app purchases:** none


### Mars LTE

[App page](https://appshunter.io/ios/app/mars-lte/id1623085876)

Explore Mars with detailed information about the Perseverance rover's mission. Learn about its search for ancient life, sample collection, and technology testing for future human exploration. Discover the Ingenuity helicopter's groundbreaking flight capabilities.

**Highlights:** Perseverance rover mission details, Search for ancient microbial life, Core sample collection and storage, Technology testing for human exploration, Ingenuity helicopter flight information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mars Book free?

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

### Is Mars LTE free?

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

### Do Mars Book or Mars LTE have ads?

Neither Mars Book nor Mars LTE shows ads.

### Which is updated more often, Mars Book or Mars LTE?

Mars Book ships an update every 13 months, and Mars LTE every 43 months. Most recently, Mars Book was updated on September 10, 2026 and Mars LTE on June 7, 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.*