# QSAFE24 Mobile vs 4kostrzewa

The clearest difference is iOS requirement: QSAFE24 Mobile at 9.0 against 4kostrzewa's 16.0. 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.

QSAFE24 Mobile ships an update every 10 days, 4kostrzewa weekly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | QSAFE24 Mobile | 4kostrzewa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Size | 39 MB | 27 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [ETS Polska Sp. z o.o.](https://appshunter.io/developer/1499361774) | [PRZEDSIEBIORSTWO PRODUKCYJNO HANDLOWE KOSTRZEWA SPOŁKA KOMANDYTOWA](https://appshunter.io/developer/946693899) |

## What reviewers say

### QSAFE24 Mobile

[App page](https://appshunter.io/ios/app/qsafe24-mobile/id1499361775)

**Features:** macOS Compatibility

**In-app purchases:** none


### 4kostrzewa

[App page](https://appshunter.io/ios/app/4kostrzewa/id6478114249)

**In-app purchases:** none


## Frequently asked questions

### Is QSAFE24 Mobile free?

QSAFE24 Mobile is free to download, with no in-app purchases.

### Is 4kostrzewa free?

4kostrzewa is free to download, with no in-app purchases.

### Do QSAFE24 Mobile or 4kostrzewa have ads?

Neither QSAFE24 Mobile nor 4kostrzewa shows ads.

### Which is updated more often, QSAFE24 Mobile or 4kostrzewa?

QSAFE24 Mobile ships an update every 10 days, and 4kostrzewa weekly. Most recently, QSAFE24 Mobile was updated on November 7, 2026 and 4kostrzewa on November 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.*