Comparison

NoiseScope vs Decibel Meter

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

Head to head
About

NoiseScope

Features
Read full description

NoiseScope is a precise and reliable tool for measuring and documenting sound levels in your environment. Whether you are at a concert, at work, at home, or outdoors, NoiseScope gives you an accurate understanding of the noise around you — in real time. Measure sound levels instantly in decibels (dB) with a clear, color-coded display that helps you understand how safe or harmful the sound may be. The app also provides a rolling average to smooth out rapid fluctuations and give you a more stable picture of the overall sound environment. Measure and store noise over time Start a measurement period and track minimum, maximum, and average levels. With location access enabled, NoiseScope also records your position and marks it on a map, making it easy to document where a measurement took place. Perfect for reporting noise issues The Pro version allows you to save measurement periods and export detailed PDF reports containing all key values — time, location, and noise levels — ideal for submitting noise complaints or documenting sound conditions professionally. The Pro Version Features • Unlimited measurement duration • Save measurement periods • Export PDF reports with key data and map • Improved documentation for noise complaints Designed for clarity and ease of use NoiseScope offers a clean, intuitive interface that makes noise measurement accessible to everyone. Real-time readings can be disabled at any time to reduce battery use. Whether you need a simple sound level meter or a tool for formal documentation, NoiseScope gives you accurate, reliable, and easy-to-share results.

About

Decibel Meter

Features
Read full description

NoiseScope is a personal environmental noise analyzer for real-time sound measurement, sleep environment review, and long-term noise records. Open the app and measurement starts automatically. You can check current dB levels, peaks, LAeq trends, weighting modes, response modes, low-frequency indicators, and noise profile insights in a focused full- screen interface. Key features: - Real-time decibel measurement - LAeq, peak, A/C/Z weighting, and Fast/Slow/Impulse response - Sleep noise analysis with baseline, peak, disturbances, and quiet periods - Hearing exposure estimates based on NIOSH and OSHA references - Noise profile insights for low-frequency rumble, traffic, mechanical noise, and sudden events - Local history with session summaries and event timelines - PDF reports for single sessions, 24-hour trends, and sleep review - Microphone profiles, calibration tools, and device model adjustment - Local-first data storage with no raw recording upload by default Free features include real-time measurement, basic trends, single-session reports, and recent history. Pro is a one-time purchase that unlocks advanced reports, sleep analysis, full history, calibration tools, alerts, and data archive features. NoiseScope is designed for personal reference, room comparison, sleep environment review, apartment noise checks, office noise tracking, and daily sound awareness. It is not a replacement for a certified legal sound level meter.

Screenshots

NoiseScope4 screens
Decibel Meter4 screens

Verdict

The call

NoiseScope and Decibel Meter 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. NoiseScope sells 1 one-off in-app purchase and Decibel Meter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NoiseScope ships an update every 2 months, Decibel Meter every 5 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
NoiseScope versus Decibel Meter: the parameters behind the verdict, then further details
ParameterNoiseScopeDecibel Meter
PriceFreeFree
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size7 MB3 MB
Age rating4+4+
DeveloperTore Bergethon Østensen博 彭

In-app purchases

1 purchases

NoiseScope

One-time1
  • Pro version$2.99
1 purchases

Decibel Meter

One-time1
  • Pro永久版$1.99

Questions

Is NoiseScope free?
NoiseScope is free to download, with in-app purchases available.
Is Decibel Meter free?
Decibel Meter is free to download, with in-app purchases available.
Do NoiseScope or Decibel Meter have ads?
Neither NoiseScope nor Decibel Meter shows ads.
Which is updated more often, NoiseScope or Decibel Meter?
NoiseScope ships an update every 2 months, and Decibel Meter every 5 weeks. Most recently, NoiseScope was updated on October 28, 2026 and Decibel Meter on October 25, 2026.

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