# MPS system AiO vs STZ

MPS system AiO and STZ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

MPS system AiO ships an update every 9 months, STZ every 8 months. The most recent releases landed on September 10, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | MPS system AiO | STZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 8 months** |
| Size | 16 MB | 22 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MPS - System, spol. s r.o.](https://appshunter.io/developer/1531484145) | [Dominik Kedzierski](https://appshunter.io/developer/1611447563) |

## What reviewers say

### MPS system AiO

[App page](https://appshunter.io/ios/app/mps-system-aio/id1531484143)

**In-app purchases:** none


### STZ

[App page](https://appshunter.io/ios/app/stz-7/id1669229641)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MPS system AiO free?

MPS system AiO is free to download, with no in-app purchases.

### Is STZ free?

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

### Do MPS system AiO or STZ have ads?

Neither MPS system AiO nor STZ shows ads.

### Which is updated more often, MPS system AiO or STZ?

MPS system AiO ships an update every 9 months, and STZ every 8 months. Most recently, MPS system AiO was updated on September 10, 2026 and STZ on May 17, 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.*