SmarterNoise Pro vs Noise Guru
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmarterNoise Pro
This advanced sound level meter app offers detailed audio analysis with features like frequency spectrum display and data export. It allows for precise sound measurements in both video and audio recording modes, with options for A-, C-, or no weighting.
- Sound level measurement in video/audio modes
- Frequency spectrum display
- Export measurement data (CSV)
- Sound level activated audio recording
- Calibration tool
- Full HD video recording (paid)
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SmarterNoise Pro is the most advanced edition of the SmarterNoise recording sound level meters. SmarterNoise Pro edition is developed especially with more advanced measurements in mind, and includes many requested features such as a frequency spectrum display, export of measurement data, A-, C- or no weighting for sound level measurement, and full screen audio mode. SmarterNoise Pro edition does not contain any advertising, and performs accurately and fast. Features: • Sound level measurement in video mode • Sound level measurement in audio mode • Sound meter snapshot camera • Record video and audio files (paid function) • Recording timer • Sound level activated audio recording • Frequency spectrum display (paid function) • Peak frequency detection • A-, C- or no frequency weighting • Export of measurement data in CSV format • Full HD (paid function), HD and VGA video resolution • Three video quality settings • Archive for saved files • Sharing of saved files • Calibration • Save location of measurement (optional) • Time and date • Continuous Leq, LAeq, LCeq value • 10 second sound level average (Leq, LAeq, LCeq) • 60 second sound level average (Leq, LAeq, LCeq) • Maximum and minimum decibel level About decibels and sound level measurement The unit for measuring sound is called a decibel. Because the decibel scale is logarithmic, a sound with an intensity that is twice that of a reference sound corresponds to an increase of about 3 decibels. The reference point of 0 decibel is set at the intensity of the least perceptible sound, the threshold of hearing. On such a scale a 10-decibel sound is 10 times the intensity of the reference sound. Highlighting this is important as already a few decibels higher or lower makes a noticeable difference in how noise is perceived. The preferred method to describe sound levels that vary over time, resulting in a single decibel value measuring the total sound energy over the period, is called Leq. It is however common practice to measure sound levels using A-weighting, which attenuates lower and higher frequencies that the average person cannot hear. In this case the value is called LAeq. A- and C-weighting The A-weighting is a standard, commonly used filter that attempts to alter the measured sound pressure levels to more closely match the perception of the human ear. A-weighting makes the sound level meter less sensitive to very high (over 8000 Hz) and low frequencies (below 1000 Hz). C-weighting also attenuates low and high frequencies, but the attenuation of low frequencies is much less severe compared to A-weighting. Calibrate: Calibrate the application using the calibration tool found in the settings menu. Phones and their components vary in quality and setup so you need to calibrate the app in order for the results to be relatively comparable. One suggestion is that you close the window and door to your bedroom or bathroom, turn off appliances, and once its very quiet calibrate the app so the reading is about 30 decibel.
Noise Guru
Measure sound levels with precision to understand your environment and protect your hearing. Identify loud noises, monitor noise pollution, and find quiet spaces for recording. Features include a decibel dosimeter, background noise measurement, and geo-tagged recordings.
- Precise sound level metering (SPL)
- DB Dosimeter for noise exposure tracking
- Background noise measurement
- Noise pollution monitoring
- Geo-tagged noise recordings
- Unlimited recording duration
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Want to expose the absurd loudness of your pet's snoring? Need to find a quiet place to record, so your social media video doesn’t turn out to be muffled? Take control of your sound environment with ease with the ultimate tool for measuring decibels and taking control of your hearing health. With precise sound level metering, you can measure the sound pressure level (SPL) and choose your preferred display format. The app also allows you to measure pet snoring loudness and find a quiet recording spot for social media users and streams. Features: - Keep track of the noise you're exposed to with the DB Dosimeter, set acceptable noise standards and be informed if the noise level exceeds the typical threshold. - Measure noise in the background. - Monitor noise pollution with DB Dosimeter. - Overlay video with noise recordings and geo-tagged location. - Set your customized display options with video effects - Record without limits on duration. Don't risk damaging your hearing with prolonged exposure to constant daily noise. Take control of your hearing health with this app and protect your hearing for the long term. “[..] perhaps as many as 40 million adults (24 percent)—have features of their hearing test that suggest hearing loss in one or both ears from exposure to loud noise. Researchers have also estimated that as many as 17 percent of teens (ages 12 to 19) have features of their hearing test suggestive of NIHL in one or both ears” NIH report on noise-induced hearing loss, NIH Publication No. 14-4233, March 2014 Terms of Use: http://aserykh.com/decibel/terms-of-use Privacy Policy: http://aserykh.com/decibel/privacy-policy
Screenshots
Verdict
The clearest difference is review sentiment: Noise Guru at 88% against SmarterNoise Pro's 29%. Noise Guru also leads on in-app purchases (none vs 4) and rating (4.6 vs 4.3). SmarterNoise Pro's advantage is iOS requirement (12.0 vs 14.0). On price, update cadence, 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. SmarterNoise Pro sells 4 one-off in-app purchases. Noise Guru asks for nothing beyond the download.
Noise Guru holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Noise Guru has 360 ratings behind it against 33, so its average is the more settled of the two. Written reviews point the same way: 29% of SmarterNoise Pro's written reviews are positive against 88% of Noise Guru's.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | SmarterNoise Pro | Noise Guru |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (33 ratings) | 4.6 (360 ratings) — better |
| Positive reviews | 28.6% of reviews | 88.3% of reviews — better |
| Number of ratings | 33 | 360 — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 24 MB | 15 MB |
| Age rating | 12+ | 4+ |
| Developer | Johan Rogard | Andrei Serykh |
Customer experience
SmarterNoise Pro
Noise Guru
Bugs and requests
SmarterNoise Pro
Not enough reviews yet to summarise bugs or requests.
Noise Guru
Reported bugs
2 issues- Forced to leave a review to use the app
- Can't delete max values
Requested features
2 requests- Add frequency meter
- Add option to reset max/min values
In-app purchases
SmarterNoise Pro
- Camera upgrade$0.99
- Frequency spectrum indicator$1.99
- Video and audio recording$1.99
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- Spectrogram display$1.99
Noise Guru
No in-app purchases
Questions
Is SmarterNoise Pro free?
Is Noise Guru free?
Which has better reviews, SmarterNoise Pro or Noise Guru?
Do SmarterNoise Pro or Noise Guru have ads?
Which is updated more often, SmarterNoise Pro or Noise Guru?
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