# Cometal vs KSB BOA

The clearest difference is update cadence: KSB BOA at every 2 months against Cometal's every 6 months. Cometal's advantage is iOS requirement (11.0 vs 15.2). 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.

Cometal ships an update every 6 months, KSB BOA every 2 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Cometal | KSB BOA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 163 MB | 8 MB |
| Requires iOS | **11.0** | 15.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Im3diA comunicación](https://appshunter.io/developer/882688465) | [KSB SE & Co. KGaA](https://appshunter.io/developer/533763415) |

## What reviewers say

### Cometal

[App page](https://appshunter.io/ios/app/cometal-manual-tecnico/id937691770)

**In-app purchases:** none


### KSB BOA

[App page](https://appshunter.io/ios/app/ksb-boa-control-calc/id1574678471)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cometal free?

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

### Is KSB BOA free?

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

### Do Cometal or KSB BOA have ads?

Neither Cometal nor KSB BOA shows ads.

### Which is updated more often, Cometal or KSB BOA?

Cometal ships an update every 6 months, and KSB BOA every 2 months. Most recently, Cometal was updated on October 26, 2026 and KSB BOA on October 27, 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.*