# URMTrace STH vs IR Mobile Access

The clearest difference is update cadence: IR Mobile Access at every 5 months against URMTrace STH's every 38 months. URMTrace STH's advantage is iOS requirement (9.0 vs 15.0). 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.

URMTrace STH ships an update every 38 months, IR Mobile Access every 5 months. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | URMTrace STH | IR Mobile Access |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 5 months** |
| Size | 20 MB | 8 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锡敏 石](https://appshunter.io/developer/1015833793) | [Inner Range Pty. Ltd.](https://appshunter.io/developer/562825337) |

## What reviewers say

### URMTrace STH

[App page](https://appshunter.io/ios/app/urmtrace-sth/id1599675158)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### IR Mobile Access

[App page](https://appshunter.io/ios/app/ir-mobile-access/id1605706021)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is URMTrace STH free?

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

### Is IR Mobile Access free?

IR Mobile Access is free to download, with no in-app purchases.

### Do URMTrace STH or IR Mobile Access have ads?

Neither URMTrace STH nor IR Mobile Access shows ads.

### Which is updated more often, URMTrace STH or IR Mobile Access?

URMTrace STH ships an update every 38 months, and IR Mobile Access every 5 months. Most recently, URMTrace STH was updated on October 4, 2026 and IR Mobile Access on October 5, 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.*