Comparison

KSB Sonolyzer vs iMotor Smart Services

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

KSB Sonolyzer

Features
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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.

About

iMotor Smart Services

Features
Read full description

iMotor PHM device health management provides users with one-stop services such as online detection, data uploading, fault alarms, health checks, etc.of motors, air compressors, fans and frequency converters, and gives enterprises the full life of visual management of equipment cycle. iMotor PHM device health management provides users with device running status and operation and maintenance monitoring services, and provides the following services: 1. Monitor the device status and know the device data; 2. Notify the device to alarm and find the device failure at the first time; 3. Check the device score and ranking to understand the cause of the device; 4. Conduct device health assessment, discover bad device in time and review policies; 5. AI diagnostic analysis and advanced fault diagnosis algorithm provide fault predictive maintenance plan.

Screenshots

KSB Sonolyzer4 screens
iMotor Smart Services4 screens

Verdict

The call

The clearest difference is iOS requirement: iMotor Smart Services at 12.0 against KSB Sonolyzer's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard1 real difference ยท 5 level
KSB Sonolyzer versus iMotor Smart Services: the parameters behind the verdict, then further details
ParameterKSB SonolyzeriMotor Smart Services
PriceFreeFree
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.012.0 โ€” better
Further details โ€” not scored
Size88 MB47 MB
Age rating4+4+
DeveloperKSB SE & Co. KGaAZhejiang iMotorLinx Technology Co. Ltd.

In-app purchases

None

KSB Sonolyzer

No in-app purchases

None

iMotor Smart Services

No in-app purchases

Questions

Is KSB Sonolyzer free?
KSB Sonolyzer is free to download, with no in-app purchases.
Is iMotor Smart Services free?
iMotor Smart Services is free to download, with no in-app purchases.
Do KSB Sonolyzer or iMotor Smart Services have ads?
Neither KSB Sonolyzer nor iMotor Smart Services shows ads.
Which is updated more often, KSB Sonolyzer or iMotor Smart Services?
KSB Sonolyzer ships an update every 4 months, and iMotor Smart Services every 4 months. Most recently, KSB Sonolyzer was updated on October 5, 2026 and iMotor Smart Services on October 7, 2026.

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