SonoMeter vs NoiseScope
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SonoMeter
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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
NoiseScope
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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
Verdict
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
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.
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.
| Parameter | SonoMeter | NoiseScope |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 2 months β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 16 β better | 17.6 |
| Further details β not scored | ||
| Size | 35 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Raphael Goupille | Tore Bergethon Γstensen |
In-app purchases
SonoMeter
- Weekly Subscription$1.997 Days
- Monthly subscription$5.991 Month
- Annual subscription$24.991 Year
- Premium Lifetime$6.99
NoiseScope
- Pro version$2.99









