CMS Engineer vs AcousticCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CMS Engineer
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The Engineer app allows engineers to complete and commission installs and service calls for Connected Management Services.
AcousticCheck
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CMS Engineer ships an update monthly, AcousticCheck every 4 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.
| Parameter | CMS Engineer | AcousticCheck |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.4 — better | 16.6 |
| Further details — not scored | ||
| Size | 36 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | CMS SupaTrak Ltd | rosenbinder UG |
In-app purchases
CMS Engineer
No in-app purchases
AcousticCheck
No in-app purchases
Questions
Is CMS Engineer free?
Is AcousticCheck free?
Do CMS Engineer or AcousticCheck have ads?
Which is updated more often, CMS Engineer or AcousticCheck?
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