# Mars Express KH vs Gate 8

The clearest difference is update cadence: Gate 8 at every 3 weeks against Mars Express KH's every 2 months. Mars Express KH's advantage is iOS requirement (12.0 vs 15.5). 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 Express KH ships an update every 2 months, Gate 8 every 3 weeks. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Mars Express KH | Gate 8 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 36 MB | 318 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ry Sokkheng](https://appshunter.io/developer/1628036349) | [Nuvolink Pty Ltd](https://appshunter.io/developer/1744055252) |

## What reviewers say

### Mars Express KH

[App page](https://appshunter.io/ios/app/mars-express-kh/id1628036347)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gate 8

[App page](https://appshunter.io/ios/app/gate-8/id6501969095)

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mars Express KH free?

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

### Is Gate 8 free?

Gate 8 is free to download, with no in-app purchases.

### Do Mars Express KH or Gate 8 have ads?

Neither Mars Express KH nor Gate 8 shows ads.

### Which is updated more often, Mars Express KH or Gate 8?

Mars Express KH ships an update every 2 months, and Gate 8 every 3 weeks. Most recently, Mars Express KH was updated on September 8, 2026 and Gate 8 on September 15, 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.*