Comparison

Sound Power vs Chazy Control

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

Head to head
About

Sound Power

Features
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Sound Power – Accurate Sound Power Measurement, Effortlessly Sound Power is your mobile companion for measuring the sound power of machines, devices, and other objects. Designed for use with Svantek sound level meters (like SV 977D and SV 971A) via Bluetooth®, this app helps you quickly set up measurement points around your test object and guides you through the entire process with ease. Whether you're conducting lab tests or fieldwork, Sound Power simplifies sound power assessments and supports compliant measurements based on international standards. Its intuitive interface makes setup fast and reporting effortless. New: "Manual mode" Now you can use Sound Power even without a Svantek device. The new "Manual mode" allows you to enter measured sound level data manually, making it easy to generate reports and document results when external measurements have already been taken. Key Features: - New "Manual mode": enter sound level values manually, without a device - Connects via Bluetooth® to Svantek meters (SV 977D, SV 971A) - Supports measurement point configuration around the sound source - Guides users through standardized sound power testing - Saves all data and results directly to the sound level meter - Generates reports instantly - Designed for both professionals and technicians List of supported devices: - SVAN 977CE - SV 977D - SV 973 - SV 973A - SV 971A

About

Chazy Control

Features
Read full description

Easily discover and manage your smart devices on the same network. Key Features: Auto-discovery of devices via LAN broadcast Add and manage multiple devices with ease Intuitive card-style interface Quick access to each device’s web control page

Screenshots

Sound Power4 screens
Chazy Control4 screens

Verdict

The call

Sound Power and Chazy Control are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Sound Power ships an update every 5 weeks, Chazy Control monthly. Both last shipped on October 30, 2026.

ScorecardNo meaningful differences
Sound Power versus Chazy Control: the parameters behind the verdict, then further details
ParameterSound PowerChazy Control
PriceFreeFree
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size94 MB8 MB
Age rating4+4+
DeveloperSvantek Sp. z o.o.Turtle AV Pty Ltd

In-app purchases

None

Sound Power

No in-app purchases

None

Chazy Control

No in-app purchases

Questions

Is Sound Power free?
Sound Power is free to download, with no in-app purchases.
Is Chazy Control free?
Chazy Control is free to download, with no in-app purchases.
Do Sound Power or Chazy Control have ads?
Neither Sound Power nor Chazy Control shows ads.
Which is updated more often, Sound Power or Chazy Control?
Sound Power ships an update every 5 weeks, and Chazy Control monthly. Most recently, Sound Power was updated on October 30, 2026 and Chazy Control on October 30, 2026.

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