# KM vs MMS IRT

The clearest difference is update cadence: KM at every 3 weeks against MMS IRT's every 18 months. 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.

KM ships an update every 3 weeks, MMS IRT every 18 months. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | KM | MMS IRT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 18 months |
| Size | 34 MB | 60 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zegeba AS](https://appshunter.io/developer/1006586927) | [MariApps Marine Solutions Pvt. Ltd.](https://appshunter.io/developer/1040404561) |

## What reviewers say

### KM

[App page](https://appshunter.io/ios/app/km-support/id1503204461)

**Features:** macOS Compatibility

**In-app purchases:** none


### MMS IRT

[App page](https://appshunter.io/ios/app/mms-irt/id6450736776)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KM free?

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

### Is MMS IRT free?

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

### Do KM or MMS IRT have ads?

Neither KM nor MMS IRT shows ads.

### Which is updated more often, KM or MMS IRT?

KM ships an update every 3 weeks, and MMS IRT every 18 months. Most recently, KM was updated on September 10, 2026 and MMS IRT on September 22, 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.*