# ShireSystem Mobile Pro vs Bollard Spec Generator

The clearest difference is device support: ShireSystem Mobile Pro at 3 against Bollard Spec Generator's 1. ShireSystem Mobile Pro also leads on iOS requirement (11.0 vs 15.6). 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.

ShireSystem Mobile Pro ships an update every 4 months, Bollard Spec Generator every 3 months. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ShireSystem Mobile Pro | Bollard Spec Generator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 72 MB | 12 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 17+ |
| Developer | [Shire Systems Limited](https://appshunter.io/developer/1473791507) | [Trelleborg AB](https://appshunter.io/developer/423282462) |

## What reviewers say

### ShireSystem Mobile Pro

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Bollard Spec Generator

[App page](https://appshunter.io/ios/app/bollard-spec-generator/id6738768284)

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

**In-app purchases:** none


## Frequently asked questions

### Is ShireSystem Mobile Pro free?

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

### Is Bollard Spec Generator free?

Bollard Spec Generator is free to download, with no in-app purchases.

### Do ShireSystem Mobile Pro or Bollard Spec Generator have ads?

Neither ShireSystem Mobile Pro nor Bollard Spec Generator shows ads.

### Which is updated more often, ShireSystem Mobile Pro or Bollard Spec Generator?

ShireSystem Mobile Pro ships an update every 4 months, and Bollard Spec Generator every 3 months. Most recently, ShireSystem Mobile Pro was updated on November 3, 2026 and Bollard Spec Generator on November 2, 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.*