SmarterNoise vs SoundClass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmarterNoise
This app measures sound levels, records audio and video, and provides information on noise exposure risks. It features smart icons to help users understand the impact of noise on health and cognitive performance. Save, share, and archive your recordings with this comprehensive tool.
- Sound level measurement
- Video and audio recording
- Noise exposure risk information
- Smart icons for health impact
- Archive and sharing of recordings
- Calibration
- Location and time display
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SmarterNoise measures sound level, records video and audio and informs about noise SmarterNoise is a premium sound level meter app featuring several unique functions. SmarterNoise measures sound levels in video and audio modes, records video and sound, and informs you about the risks of noise exposure. In addition, SmarterNoise includes a camera, measurement location, and easy sharing, all for free. From the archive you can view the video and audio files you've saved on your phone. With SmarterNoise you take sound level and noise measuring to a new level never available before. SmarterNoise features smart icons that react to the measured sound levels based on current research results focusing on the health and the adverse effects of noise pollution. With the SmarterNoise icons you easily understand how hearing, cognitive performance, and health may be affected by different levels of noise exposure. The awareness of harmful noise is increasing globally, and is considered a versatile risk factor for well-being and health, especially in noise polluted urban environments. Features of SmarterNoise: Sound level measurement and recording in video and audio modes Sound level activated audio recording Full HD, HD or VGA video resolution Three video quality settings Zoom and camera light Restarting of measurement Archive for saved files Sharing of saved files Calibration Smart icons Location, address Time and date display 10 second sound level average (LAeq, decibel) 60 second sound level average (LAeq, decibel) Max and min decibel level About decibels and sound measurement The unit for measuring noise and 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 difference of a few decibels makes a noticeable difference in how noise is perceived. Leq is an average value describing the total sound energy over a period of time. It is however common practice to measure sound levels using A-weighting, which attenuates low and high frequencies that the average person cannot hear. In this case Leq is written LAeq. LAeq is a formulated average which emphasizes higher sound peaks, and is one of the most common measurements used by professionals to measure noise. All averages in SmarterNoise are measured in LAeq. Health effects of noise are often measured in Lden. Lden measures the average sound level over a 24 hour period, with a penalty of 5 dB added for the evening hours between 19:00 and 22:00, and a penalty of 10 dB added for the nighttime hours between 22:00 and 07:00. Increased health risks have been observed during long term exposure, which highlights the need to consider the full average sound energy over a longer period, not only temporary averages or noise peaks. About noise According to the findings of the World Health Organization (WHO), noise is the second largest environmental cause of health problems, after the impact of air quality. While environmental awareness in general has increased, the burden of noise has not yet been realized by the general public. People especially in urban environments are subjected to noise daily and nightly, at home and at work. Noise pollution has increased over the years due to increased traffic and air travel, urbanization, and industrial noise exposure. Because of the complex and frequent issue of everyday noise, we developed SmarterNoise in order for people to understand noise better.
SoundClass
This app uses AI to detect and record various sounds in your environment, providing real-time alerts. It's particularly useful for nighttime awareness, sleep analysis, and documenting incidents.
- AI sound detection
- Real-time alerts
- Sleep quality analysis
- Sound recording and playback
- Mosquito and animal sound detection
- Everyday sound identification
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Turn your iPhone or iPad into a personal AI sound detector. SoundClass recognizes important sounds around you, keeps a clear detection history, and helps its models adapt to your environment. HOW IT WORKS 1. Choose a category: Animals, Baby, Health, Mosquitoes, or Security. 2. Start detection and select the sensitivity that fits your room. 3. Receive a local notification when SoundClass confirms a sound. 4. Review saved audio detections as correct, incorrect, or another sound. 5. Use those reviews to train improved models for your environment. SOUNDS SOUNDCLASS CAN RECOGNIZE • Cats, dogs, and mice • Baby crying and snoring • Coughing, sneezing, and snoring • Mosquito activity • Door knocks, glass breaking, gunshots, and alarm sirens FEATURES • Live AI sound recognition on your device • Adjustable sensitivity and fine-tuning controls • Detection history with audio clips and confidence details • Audio review and personalized model training • Local notifications for confirmed detections • Optional HomeKit light response • Multiple themes with light and dark appearance Recognition accuracy can vary with distance, background noise, device placement, microphone quality, and the sound itself. SoundClass is an assistive utility and must not be used as an emergency, medical, security, or safety-critical alert system. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ GoldTime Terms and Conditions: https://goldtime.com.ar/terms.html
Screenshots
Verdict
The clearest difference is update cadence: SoundClass at every 10 days against SmarterNoise's every 6 weeks. SmarterNoise's advantage is rating (4.6 vs 4.4) and ratings volume (115 vs 10). On price, ads, in-app purchases and monetization model 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 sells 2 one-off in-app purchases and SoundClass sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
SmarterNoise holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: SmarterNoise has 115 ratings behind it against 10, so its average is the more settled of the two.
SmarterNoise ships an update every 6 weeks, SoundClass every 10 days. Both last shipped on October 6, 2026.
| Parameter | SmarterNoise | SoundClass |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (115 ratings) — better | 4.4 (10 ratings) |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 115 — better | 10 |
| Update frequency | Every 6 weeks | Every 10 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 27 MB | 54 MB |
| Age rating | 12+ | 12+ |
| Developer | Johan Rogard | Javier Ariel Bargas |
Customer experience
SmarterNoise
SoundClass
In-app purchases
SmarterNoise
- Long-term measurement$1.99
- Remove ads$2.99
SoundClass
- Gold Monthly$4.991 Month
- Gold Yearly$44.991 Year
- Battery x 10$0.99
- 100 Credits$0.99
- Battery x 40$1.99
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- 500 Credits$2.99
- 1000 Credits$4.99
Questions
Is SmarterNoise free?
Is SoundClass free?
Which has better reviews, SmarterNoise or SoundClass?
Do SmarterNoise or SoundClass have ads?
Which is updated more often, SmarterNoise or SoundClass?
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