# KSB Sonolyzer vs WEG Data Viewer

The clearest difference is update cadence: WEG Data Viewer at monthly against KSB Sonolyzer's every 4 months. 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.

KSB Sonolyzer ships an update every 4 months, WEG Data Viewer monthly. The most recent releases landed on September 18, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | KSB Sonolyzer | WEG Data Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (27 ratings)](https://appshunter.io/ios/app/weg-data-viewer/id1576866018/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | — | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free |
| Size | 88 MB | 30 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [KSB SE & Co. KGaA](https://appshunter.io/developer/533763415) | [WEG Equipamentos Eletricos S/A](https://appshunter.io/developer/575847223) |

## What reviewers say

### KSB Sonolyzer

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

**Features:** macOS Compatibility

**In-app purchases:** none


### WEG Data Viewer

[App page](https://appshunter.io/ios/app/weg-data-viewer/id1576866018)

Access technical documents for WEG products, including data sheets, drawings, and manuals for electric motors, automation equipment, and ink. Easily search for specific information within a wide range of technical documentation.

**Highlights:** Search technical documents, Access data sheets, View drawings, Find manuals, Browse bulletins, Technical documentation for WEG products

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

**In-app purchases:** none


## Frequently asked questions

### Is KSB Sonolyzer free?

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

### Is WEG Data Viewer free?

WEG Data Viewer is free to download, with no in-app purchases.

### Do KSB Sonolyzer or WEG Data Viewer have ads?

Neither KSB Sonolyzer nor WEG Data Viewer shows ads.

### Which is updated more often, KSB Sonolyzer or WEG Data Viewer?

KSB Sonolyzer ships an update every 4 months, and WEG Data Viewer monthly. Most recently, KSB Sonolyzer was updated on September 18, 2026 and WEG Data Viewer on August 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*