# X vs iMOS

The clearest difference is iOS requirement: iMOS at 8.0 against X's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

X ships an update every 6 weeks, iMOS every 2 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | X | iMOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 161 MB | 14 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [X-Guard BV](https://appshunter.io/developer/1019519189) | [TriOpSys B.V.](https://appshunter.io/developer/1418636591) |

## What reviewers say

### X

[App page](https://appshunter.io/ios/app/x-guard-alarm/id1408637075)

**In-app purchases:** none


### iMOS

[App page](https://appshunter.io/ios/app/imos/id1418636592)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is X free?

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

### Is iMOS free?

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

### Do X or iMOS have ads?

Neither X nor iMOS shows ads.

### Which is updated more often, X or iMOS?

X ships an update every 6 weeks, and iMOS every 2 months. Most recently, X was updated on November 11, 2026 and iMOS on November 11, 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.*