Comparison

SonoMeter vs NoiseScope

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

Head to head
About

SonoMeter

Features
Read full description

Measure noise in decibels, understand it and keep a record, straight from your iPhone. SonoMeter turns your iPhone into a sound level meter: real-time dB readings with A, C or Z weighting, a clear risk scale, and the tools to document noise from neighbors, traffic, work or concerts. MEASURE β€’ Real-time sound level in dB(A), dB(C) or dB(Z) β€’ LAeq, Max and measurement time at a glance β€’ Fast, Slow and Impulse response β€’ Four views: real-time chart, 1/3-octave spectrum, needle gauge and a fun meter β€’ Decibel scale with everyday examples and safe daily exposure times ANALYZE β€’ Tap the chart for a live analysis: level distribution, L10, L50 and L90 β€’ Level over time, noise dose (NIOSH, OSHA) and average spectrum with Premium DOCUMENT β€’ Save sessions with timeline, location and notes β€’ Export a multi-page PDF report β€’ Record videos with the decibels on screen, including LAeq, duration and place β€’ Noise alerts above a threshold, with a log of every exceedance β€’ Continuous listening keeps measuring with the screen locked SLEEP β€’ White, pink or brown noise with a sleep timer and lock-screen controls ALSO β€’ Home Screen widget and Live Activity β€’ Available in English, French, German, Spanish, Italian, Japanese and Chinese β€’ Your measurements stay on your iPhone ABOUT ACCURACY iPhone microphones differ from one model to another. SonoMeter applies a calibration for each iPhone model and lets you fine-tune it against a reference sound level meter. Readings are indicative and do not replace a certified class 1 or class 2 sound level meter for legal measurements. PREMIUM Some features require SonoMeter Premium, available as a one-time purchase or as a subscription. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel them in your Apple ID settings. Terms of Use: https://fabulastudio.net/sonometre/cgu Privacy Policy: https://fabulastudio.net/sonometre/confidentialite

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 β€” 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 β€” time, location, and noise levels β€” ideal for submitting noise complaints or documenting sound conditions professionally. The Pro Version Features β€’ Unlimited measurement duration β€’ Save measurement periods β€’ Export PDF reports with key data and map β€’ 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.

Screenshots

SonoMeter4 screens
NoiseScope4 screens

Verdict

The call

The clearest difference is update cadence: NoiseScope at every 2 months against SonoMeter's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. SonoMeter sells 4 in-app purchases, starting at $1.99 per 7 days and NoiseScope sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SonoMeter ships an update every 8 months, NoiseScope every 2 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard1 real difference Β· 5 level
SonoMeter versus NoiseScope: the parameters behind the verdict, then further details
ParameterSonoMeterNoiseScope
PriceFreeFree
Update frequencyEvery 8 monthsEvery 2 months β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS16 β€” better17.6
Further details β€” not scored
Size35 MB7 MB
Age rating4+4+
DeveloperRaphael GoupilleTore Bergethon Østensen

In-app purchases

4 purchases

SonoMeter

Subscriptions3
  • Weekly Subscription$1.997 Days
  • Monthly subscription$5.991 Month
  • Annual subscription$24.991 Year
One-time1
  • Premium Lifetime$6.99
1 purchases

NoiseScope

One-time1
  • Pro version$2.99

Questions

Is SonoMeter free?
SonoMeter is free to download, with in-app purchases available.
Is NoiseScope free?
NoiseScope is free to download, with in-app purchases available.
Do SonoMeter or NoiseScope have ads?
Neither SonoMeter nor NoiseScope shows ads.
Which is updated more often, SonoMeter or NoiseScope?
SonoMeter ships an update every 8 months, and NoiseScope every 2 months. Most recently, SonoMeter was updated on October 25, 2026 and NoiseScope on October 28, 2026.

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