# MARSS vs Kirigate

The clearest difference is update cadence: MARSS at every 5 days against Kirigate's every 2 months. MARSS also leads on iOS requirement (12.0 vs 16). 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.

MARSS ships an update every 5 days, Kirigate every 2 months. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | MARSS | Kirigate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Size | 257 MB | 8 MB |
| Requires iOS | **12.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INAF Osservatorio Astronomico di Brera](https://appshunter.io/developer/1669242323) | [ARtGlass USA LLC](https://appshunter.io/developer/1670104939) |

## What reviewers say

### MARSS

[App page](https://appshunter.io/ios/app/marss/id1669242321)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kirigate

[App page](https://appshunter.io/ios/app/kirigate/id6749314401)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MARSS free?

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

### Is Kirigate free?

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

### Do MARSS or Kirigate have ads?

Neither MARSS nor Kirigate shows ads.

### Which is updated more often, MARSS or Kirigate?

MARSS ships an update every 5 days, and Kirigate every 2 months. Most recently, MARSS was updated on October 9, 2026 and Kirigate on September 30, 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.*