Decibel Meter · Sound Analyzer vs M2Cloud Diagnostic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decibel Meter · Sound Analyzer
Measure ambient noise levels and sound exposure duration in real-time. This app displays acoustic intensity in decibels with detailed visual reports and supports photo/video overlays with noise data. Protect your health from noise pollution.
- Real-time decibel meter
- MIN, AVG, MAX sound level display
- Noise dosimeter (NIOSH/OSHA compliant)
- Photo and video with noise overlay
- Record measurement results
- Data saving feature
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Decibel Meter is an app that will help you measure the ambient noise level in real time and the duration of sound exposure of various intensities over a user-defined period of time. The application calculates acoustic intensity in decibels and displays a detailed visual report on the screen of your digital device. For the Decibel Meter to work correctly and detect the noise level, you need to allow access to your device’s microphone. Audio data read by the microphone is displayed in decibels (dB) in a user-friendly style. KEY FEATURES: • Real-time decibel (dB) meter; • Minimum (MIN), average (AVG), maximum (MAX) sound level display; • Fully functional noise dosimeter compliant with NIOSH and OSHA standards; • Photo and video with noise overlay; • Option to stop and record measurement results at any time; • Data saving feature. The app will help you avoid noise pollution and will protect both your health and the health of your family! Please choose from our standard subscription options below: 1-week subscription at $3.99; 1-month subscription at $6.99; 12-month subscription at $9.99. Privacy Policy: https://appliks.com/privacy-policy Terms of Use: https://appliks.com/terms-of-use
M2Cloud Diagnostic
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Initial Release of BLE Diagnostic • Connect to both Bluetooth Low Energy BLE devices • Real-time device scanning and discovery • Comprehensive command interface for device interaction • Secure login system for authorised access • Record and export diagnostic data • Clean, intuitive UI for effortless navigation When the app is logged in, it automatically starts scanning for M2Cloud 2G and 4G IoT BLE & Classic Bluetooth devices. When a compatible device is scanned, it shows up in the list with a "Select" button. "Select" button opens a "Command" page, where a full-screen terminal window opens to communicate with the device.
Screenshots
Verdict
The clearest difference is in-app purchases: M2Cloud Diagnostic at none against Decibel Meter · Sound Analyzer's 8. M2Cloud Diagnostic also leads on update cadence (monthly vs every 2 months) and iOS requirement (15.0 vs 18.6). On price, ads 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. Decibel Meter · Sound Analyzer sells 8 in-app purchases, starting at $1.99 per 7 days. M2Cloud Diagnostic asks for nothing beyond the download.
Decibel Meter · Sound Analyzer ships an update every 2 months, M2Cloud Diagnostic monthly. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.
| Parameter | Decibel Meter · Sound Analyzer | M2Cloud Diagnostic |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.3K ratings) — better | — |
| Positive reviews | 78.1% of reviews | — |
| Number of ratings | 1.3K — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | AppLiks Sp. z O.O. | M2Cloud LLP |
Bugs and requests
Decibel Meter · Sound Analyzer
Reported bugs
2 issues- Microphone issues
- Subscription paywall
Requested features
1 request- Make more apps like this one
M2Cloud Diagnostic
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Decibel Meter · Sound Analyzer
- Weekly Access$1.997 Days
- Weekly pro access$3.997 Days
- Sound Level Meter (dB) PRO3 Days trial$3.997 Days
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- Monthly pro access$6.991 Month
- Yearly Access$6.991 Year
- Decibel Meter & Dosimeter PRO3 Days trial$6.991 Month
- Sound Meter & Dosimeter PRO3 Days trial$12.991 Year
- Yearly pro access$12.991 Year
M2Cloud Diagnostic
No in-app purchases
Questions
Is Decibel Meter · Sound Analyzer free?
Is M2Cloud Diagnostic free?
Do Decibel Meter · Sound Analyzer or M2Cloud Diagnostic have ads?
Which is updated more often, Decibel Meter · Sound Analyzer or M2Cloud Diagnostic?
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