# T100 vs ShireSystem Mobile Pro

The clearest difference is update cadence: T100 at every 2 months against ShireSystem Mobile Pro's every 4 months. ShireSystem Mobile Pro's advantage is iOS requirement (11.0 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.

T100 ships an update every 2 months, ShireSystem Mobile Pro every 4 months. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | T100 | ShireSystem Mobile Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 102 MB | 72 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Business Safety Systems LIMITED](https://appshunter.io/developer/1326103576) | [Shire Systems Limited](https://appshunter.io/developer/1473791507) |

## What reviewers say

### T100

[App page](https://appshunter.io/ios/app/t100/id1326103577)

**Features:** macOS Compatibility

**In-app purchases:** none


### ShireSystem Mobile Pro

[App page](https://appshunter.io/ios/app/shiresystem-mobile-pro/id1473791508)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is T100 free?

T100 is free to download, with no in-app purchases.

### Is ShireSystem Mobile Pro free?

ShireSystem Mobile Pro is free to download, with no in-app purchases.

### Do T100 or ShireSystem Mobile Pro have ads?

Neither T100 nor ShireSystem Mobile Pro shows ads.

### Which is updated more often, T100 or ShireSystem Mobile Pro?

T100 ships an update every 2 months, and ShireSystem Mobile Pro every 4 months. Most recently, T100 was updated on September 18, 2026 and ShireSystem Mobile Pro on September 8, 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.*