# Filtermist vs ShireSystem Mobile Pro

The clearest difference is update cadence: ShireSystem Mobile Pro at every 4 months against Filtermist's every 37 months. ShireSystem Mobile Pro also leads on iOS requirement (11.0 vs 15.1). 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.

Filtermist ships an update every 37 months, ShireSystem Mobile Pro every 4 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Filtermist | ShireSystem Mobile Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 4 months** |
| Size | 28 MB | 72 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Filtermist International Limited](https://appshunter.io/developer/1450818797) | [Shire Systems Limited](https://appshunter.io/developer/1473791507) |

## What reviewers say

### Filtermist

[App page](https://appshunter.io/ios/app/filtermist/id1450818798)

**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 Filtermist free?

Filtermist 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 Filtermist or ShireSystem Mobile Pro have ads?

Neither Filtermist nor ShireSystem Mobile Pro shows ads.

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

Filtermist ships an update every 37 months, and ShireSystem Mobile Pro every 4 months. Most recently, Filtermist was updated on October 26, 2026 and ShireSystem Mobile Pro on October 26, 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.*