# HAFNERTEC BOS Control vs BRUNNER EAS3

HAFNERTEC BOS Control and BRUNNER EAS3 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.

HAFNERTEC BOS Control ships an update every 5 months, BRUNNER EAS3 every 6 months. The most recent releases landed on June 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | HAFNERTEC BOS Control | BRUNNER EAS3 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | Free | — |
| Size | 17 MB | 109 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bicker Holding GmbH](https://appshunter.io/developer/1031865898) | [Ulrich Brunner GmbH](https://appshunter.io/developer/1150435660) |

## What reviewers say

### HAFNERTEC BOS Control

[App page](https://appshunter.io/ios/app/hafnertec-bos-control/id1545131855)

Monitor your HAFNERTEC control system's operational details and view stored burn history curves. Optimize your control board configuration through extensive settings.

**Highlights:** View operational details, Access stored burn history curves, Optimize control board configuration, Extensive setting options

**Features:** macOS Compatibility

**In-app purchases:** none


### BRUNNER EAS3

[App page](https://appshunter.io/ios/app/brunner-eas3/id1588084582)

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

**In-app purchases:** none


## Frequently asked questions

### Is HAFNERTEC BOS Control free?

HAFNERTEC BOS Control is free to download, with no in-app purchases.

### Is BRUNNER EAS3 free?

BRUNNER EAS3 is free to download, with no in-app purchases.

### Do HAFNERTEC BOS Control or BRUNNER EAS3 have ads?

Neither HAFNERTEC BOS Control nor BRUNNER EAS3 shows ads.

### Which is updated more often, HAFNERTEC BOS Control or BRUNNER EAS3?

HAFNERTEC BOS Control ships an update every 5 months, and BRUNNER EAS3 every 6 months. Most recently, HAFNERTEC BOS Control was updated on June 1, 2026 and BRUNNER EAS3 on September 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.*