Comparison

dBMeter Pro vs Decibel

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

Head to head
About

dBMeter Pro

This application transforms your iPhone into a sound level meter for analyzing ambient noise or testing audio equipment. It offers dual-input measurement, a contextual reference guide, and long-term data logging up to 12 hours. Data can be exported for further analysis.

Highlights
  • Dual-input measurement
  • Contextual reference guide
  • Long-term data logging
  • CSV data export
  • External microphone support
Read full description

Transform your iPhone into a powerful sound level meter with dBMeter Pro. Whether you are analyzing ambient noise, testing audio equipment, or simply curious about your environment, dBMeter Pro delivers accurate decibel readings with an intuitive interface. Key Capabilities: - Dual-Input Measurement: Seamlessly switch between the iPhone’s built-in microphone for quick checks or connect external measuring microphones for enhanced precision. - Contextual Reference Guide: Don’t just read numbers—understand them. Our visual reference view compares current noise levels to real-world examples (like a library, traffic, or a rock concert) for instant context. - Long-Term Data Logging: Need to monitor noise over time? Record up to 12 hours of continuous samples. - Data Export: Easily export your sessions as CSV files for deep-dive analytics and archiving. Important Note: While dBMeter Pro has been calibrated using professional-grade equipment to ensure high accuracy, it is intended for personal and educational use only. It should not be used as a substitute for certified industrial equipment for professional or legal measurements. The author assumes no liability for damages arising from the use of this software.

About

Decibel

Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.

Highlights
  • Real-time decibel (dB) sound level monitoring
  • Integrated Spectrum Analyzer (FFT, spectrogram)
  • Sleep tracking with sound recognition
  • Noise exposure data export to Health app
  • Add sound level overlays to photos/videos
  • Save, export, and playback sound measurements
Features
Read full description

Decibel turns your device into a powerful sound level meter without any extra hardware. Measure ambient noise in real time, monitor sound levels (dB), and explore frequencies with the built-in Spectrum Analyzer. Capture reliable sound and noise data wherever you are. Designed for casual users, audio enthusiasts, and sound engineers, Decibel works as a portable sound meter for quick sound checks or deeper audio analysis. Use it to easily check noise levels, test room acoustics, monitor workplace noise, or fine-tune audio equipment. Decibel has various advanced features, including saving and exporting noise measurement data, live sound level overlays for photos and videos, and exporting data to the Health app to track noise exposure over time. “The best way to meter sound levels” — AppAdvice SLEEP TRACKING AND SOUND RECOGNITION Decibel’s sleep tracking and smart sound recognition help you understand your sleep environment and nighttime noise. While sleep tracking is active, the app can detect common sleep sounds such as snoring, coughing, talking, and other household or environmental noise that may affect sleep quality. Each detected sound appears on a detailed sleep timeline, so you can see exactly when disruptions occurred and play back the related audio. This makes it easier to identify snoring patterns, sleep disturbances, and noise events that impact your rest. All sleep sound recognition and audio analysis are performed entirely on your device using advanced on-device machine learning. Recordings stay private, are processed locally, and never leave your device. KEY FEATURES - Visualize ambient sound levels and decibel (dB) readings in real time - Sync with the Health app to track and export noise exposure data - Add live sound level overlays to photos and videos - Save sound measurements with location data and custom labels - Record, store, export, and play back sound measurements - Export sound and noise data in CSV or audio formats SPECTRUM ANALYZER - Integrated Spectrum Analyzer with FFT and spectrogram modes - Multiple FFT sizes up to 16,384 points with selectable window functions - Flexible visualization modes and graph styles - Octave Band Real-Time Analyzer (RTA) for detailed frequency analysis EXTERNAL MICROPHONES AND CALIBRATION - Support for external microphones - Calibrate connected microphones directly in the app - Create and manage custom profiles for different microphones REPORTING AND EXPORT - Generate detailed noise measurement reports, including LAeq values - Batch export multiple measurements in supported formats Decibel app is not a replacement for professional devices and should be used for personal purposes only. By using this app, you acknowledge and agree that the developers and publishers are not liable for any decisions made based on the information provided by the app. SUBSCRIPTIONS Decibel offers optional subscriptions that unlock advanced tools and ongoing feature enhancements. With a subscription, you get access to an expanding set of professional Spectrum Analyzer features, advanced sound level weighting modes, and continued updates for compatibility with new devices and hardware. Subscriptions also include support for external microphones, unlimited saving and exporting of measurements, batch export tools, and audio and video exports with sound level overlays. Payment will be charged to your Apple account at confirmation of purchase. Subscriptions renew automatically unless auto-renewal is turned off at least 24 hours before the end of the current period. You can manage or disable auto-renewal at any time in your Apple ID account settings. By downloading and using the app, you agree to the following: Terms of Use: https://www.iubenda.com/terms-and-conditions/94359518 Privacy Policy: https://www.iubenda.com/privacy-policy/94359518 Disclaimer: http://dbmeterpro.com/disclaimer.html Questions or feedback? Contact us at support@decibelpro.app

Screenshots

dBMeter Pro4 screens
Decibel4 screens

Verdict

The call

The clearest difference is price: Decibel at Free against dBMeter Pro's $5.99. Decibel also leads on ratings volume (36K vs 2) and update cadence (every 2 months vs every 5 months). dBMeter Pro's advantage is in-app purchases (none vs 10) and rating (5.0 vs 4.6). On ads 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

Decibel is free to download; dBMeter Pro costs $5.99 up front. Decibel sells 10 in-app purchases, starting at $1.99 per 7 days. dBMeter Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

dBMeter Pro holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Decibel has 36K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 57% of dBMeter Pro's written reviews are positive against 66% of Decibel's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

dBMeter Pro ships an update every 5 months, Decibel every 2 months. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

Scorecard9 real differences · 1 level
dBMeter Pro versus Decibel: the parameters behind the verdict, then further details
ParameterdBMeter ProDecibel
Price$5.99Free — better
Rating5.0 (2 ratings) — better4.6 (36K ratings)
Positive reviews56.7% of reviews65.9% of reviews — better
Number of ratings236K — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.613.0 — better
Further details — not scored
Size6 MB56 MB
Age rating4+4+
DeveloperMatthias SchorerVlad Polyanskiy

Customer experience

dBMeter Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews60 reviews
Positive56.7%
Neutral16.7%
Negative26.7%

Decibel

All ratings36,118 ratings
Positive92.5%
Neutral3.8%
Negative3.7%
Written reviews511 reviews
Positive65.9%
Neutral3.7%
Negative30.3%

Bugs and requests

dBMeter Pro

Not enough reviews yet to summarise bugs or requests.

Decibel

Reported bugs

3 issues
  • App crashes or freezes during use
  • Subscription issues and unwanted charges
  • Microphone compatibility problems

Requested features

4 requests
  • Add option to set noise level alerts
  • Improve geolocation and recording features
  • Allow audio playback while using the app
  • Provide more calibration options

In-app purchases

None

dBMeter Pro

No in-app purchases

10 purchases

Decibel

Subscriptions5
  • Premium Mode3 Days trial$1.997 Days
  • Premium Plus7 Days trial$4.991 Month
  • Premium Mode3 Days trial$7.991 Month
Show 2 more
  • Premium Mode Subscription$9.991 Month
  • Premium Mode7 Days trial$29.991 Year
One-time5
  • dB Meter Pro$4.99
  • Noise Dosimeter Pro$9.99
  • Decibel Meter Pro$19.99
Show 2 more
  • Spectrum Analyzer Pack$24.99
  • dB Meter Premium Pack$49.99

Questions

Is dBMeter Pro free?
dBMeter Pro costs $5.99, with no in-app purchases.
Is Decibel free?
Decibel is free to download, with in-app purchases available.
Which has better reviews, dBMeter Pro or Decibel?
dBMeter Pro is rated higher. dBMeter Pro averages 5.0 out of 5 from 2 ratings, while Decibel averages 4.6 from 36K ratings.
Do dBMeter Pro or Decibel have ads?
Neither dBMeter Pro nor Decibel shows ads.
Which is updated more often, dBMeter Pro or Decibel?
dBMeter Pro ships an update every 5 months, and Decibel every 2 months. Most recently, dBMeter Pro was updated on October 27, 2026 and Decibel on October 31, 2026.

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