# bossMaintenance vs FZAG

The clearest difference is update cadence: FZAG at fortnightly against bossMaintenance's every 4 months. FZAG also leads on iOS requirement (13.0 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.

bossMaintenance ships an update every 4 months, FZAG fortnightly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | bossMaintenance | FZAG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 103 MB | 100 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [bossinfo.ch AG](https://appshunter.io/developer/1567879756) | [Softwareentwicklung Schittkowski GmbH](https://appshunter.io/developer/1068208943) |

## What reviewers say

### bossMaintenance

[App page](https://appshunter.io/ios/app/bossmaintenance/id6499280428)

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

**In-app purchases:** none


### FZAG

[App page](https://appshunter.io/ios/app/fzag/id6741758564)

**In-app purchases:** none


## Frequently asked questions

### Is bossMaintenance free?

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

### Is FZAG free?

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

### Do bossMaintenance or FZAG have ads?

Neither bossMaintenance nor FZAG shows ads.

### Which is updated more often, bossMaintenance or FZAG?

bossMaintenance ships an update every 4 months, and FZAG fortnightly. Most recently, bossMaintenance was updated on October 27, 2026 and FZAG on October 28, 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.*