# SMEPayroll vs KSB Sonolyzer

The clearest difference is update cadence: SMEPayroll at every 6 weeks against KSB Sonolyzer's every 4 months. SMEPayroll also leads on iOS requirement (6.0 vs 16.0). 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.

SMEPayroll ships an update every 6 weeks, KSB Sonolyzer every 4 months. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | SMEPayroll | KSB Sonolyzer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 33 MB | 88 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Advanced & Best Technologies Pte Ltd](https://appshunter.io/developer/598510101) | [KSB SE & Co. KGaA](https://appshunter.io/developer/533763415) |

## What reviewers say

### SMEPayroll

[App page](https://appshunter.io/ios/app/smepayroll/id598510098)

**Features:** macOS Compatibility

**In-app purchases:** none


### KSB Sonolyzer

[App page](https://appshunter.io/ios/app/ksb-sonolyzer/id999364617)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMEPayroll free?

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

### Is KSB Sonolyzer free?

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

### Do SMEPayroll or KSB Sonolyzer have ads?

Neither SMEPayroll nor KSB Sonolyzer shows ads.

### Which is updated more often, SMEPayroll or KSB Sonolyzer?

SMEPayroll ships an update every 6 weeks, and KSB Sonolyzer every 4 months. Most recently, SMEPayroll was updated on September 21, 2026 and KSB Sonolyzer on September 18, 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.*