Comparison

CMS Engineer vs AcousticCheck

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

Head to head
About

CMS Engineer

Features
Read full description

The Engineer app allows engineers to complete and commission installs and service calls for Connected Management Services.

About

AcousticCheck

Features
Read full description

With AcousticCheck, the reverberation time (RT60) can be measured simple, fast and with high accuracy - even by people without acoustic expertise. AcousticCheck includes the following features for a smooth measurement experience: - Reverberation time measurement by impulse or sweep method - Up to nine consecutive measurements per measurement run for the most accurate results possible - Simple tutorial and guided measurement instructions - Detailed result display: Reverberation time on average and in octaves⁺ (chart, table) - Save measurement results for individual rooms or whole projects⁺ - Save and Share the measurement results as a chart and table⁺ - In-depth support⁺ Additional features for advanced and expert users: - Customizable room size (particularly helpful for measurements in larger rooms)⁺ - Adjustable start delay for impulse measurements⁺ - Save and Share results in CSV format (full measurement results, average reverberation times, correlation coefficient rT20 & signal-to-noise ratio SNR included)⁺ - Information on the room and additional notes can be added to the result export - Photos can be added to the result export - Optional export of impulse responses as WAV files⁺ ⁺only included in AcousticCheck Plus This app does not collect, use, store or transfer personal data. With your permission, Apple collects app analytics to help developers improve their apps. For more information, see the links below. Apple Privacy Policy: https://www.apple.com/privacy/ Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CMS Engineer4 screens
AcousticCheck4 screens

Verdict

The call

The clearest difference is update cadence: CMS Engineer at monthly against AcousticCheck's every 4 months. CMS Engineer also leads on iOS requirement (13.4 vs 16.6). 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

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

CMS Engineer ships an update monthly, AcousticCheck every 4 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 4 level
CMS Engineer versus AcousticCheck: the parameters behind the verdict, then further details
ParameterCMS EngineerAcousticCheck
PriceFreeFree
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.4 — better16.6
Further details — not scored
Size36 MB14 MB
Age rating4+4+
DeveloperCMS SupaTrak Ltdrosenbinder UG

In-app purchases

None

CMS Engineer

No in-app purchases

None

AcousticCheck

No in-app purchases

Questions

Is CMS Engineer free?
CMS Engineer is free to download, with no in-app purchases.
Is AcousticCheck free?
AcousticCheck is free to download, with no in-app purchases.
Do CMS Engineer or AcousticCheck have ads?
Neither CMS Engineer nor AcousticCheck shows ads.
Which is updated more often, CMS Engineer or AcousticCheck?
CMS Engineer ships an update monthly, and AcousticCheck every 4 months. Most recently, CMS Engineer was updated on October 30, 2026 and AcousticCheck on October 27, 2026.

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