KSB Sonolyzer vs WEG Data Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KSB Sonolyzer
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The first App that hears if you save energy. KSB Sonolyzer enables you to appraise the efficiency or inefficiency of pumps and other rotating equipment by simply listening. You enter four parameters which you can find on the type plate of the machine and hold your mobile device for 20 seconds close to the fan of the induction motor operated with constant supply voltage and frequency. Sonolyzer captures the operational noise with the inbuilt microphone and analyses the noise spectrum within seconds. The results are displayed afterwards on your device display, e.g. that pump and motor are operated in partial load. You can request advice based on your individual analysis, and your locally responsible KSB contact can connect seamlessly to your analysis.
WEG Data Viewer
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.
- Search technical documents
- Access data sheets
- View drawings
- Find manuals
- Browse bulletins
- Technical documentation for WEG products
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Access technical documents for WEG products. WEG Data Viewer is a tool to easily search data sheets, drawings, test reports, manuals, bulletins and other technical documents related to electric motors, alternators, automation equipment and ink manufactured by WEG.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | KSB Sonolyzer | WEG Data Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.1 (27 ratings) — better |
| Positive reviews | — | 12.5% of reviews |
| Number of ratings | — | 27 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 88 MB | 30 MB |
| Age rating | 4+ | +4 |
| Developer | KSB SE & Co. KGaA | WEG Equipamentos Eletricos S/A |
In-app purchases
KSB Sonolyzer
No in-app purchases
WEG Data Viewer
No in-app purchases
Questions
Is KSB Sonolyzer free?
Is WEG Data Viewer free?
Do KSB Sonolyzer or WEG Data Viewer have ads?
Which is updated more often, KSB Sonolyzer or WEG Data Viewer?
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