Comparison

SmarterNoise vs clir Hearing

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

clir Hearing

Enhance speech clarity in any environment with AI-powered noise filtering. This app processes audio locally on your device for maximum privacy, turning your phone into a remote microphone for enhanced listening experiences with headphones and hearing aids.

Highlights
  • AI-driven noise removal
  • Real-time speech enhancement
  • On-device processing for privacy
  • Remote listening functionality
  • Low latency audio streaming
  • Hearing aid compatibility
Features
Read full description

Follow every word. clir turns your iPhone into a real-time listening assistant: its AI lifts the voice you're actually listening to out of the noise around it, and streams it straight to your AirPods, headphones, or hearing aids. If restaurants have got harder, if you nod along in meetings and hope you caught it, if family dinners leave you tired — this is built for you. HOW IT WORKS Point your iPhone toward whoever is speaking and press Start. clir separates speech from background noise as it happens and sends the clear version to whatever you already wear. Two modes: Clear Speech strips the room away, Original amplifies everything gently and naturally. WHAT PEOPLE USE IT FOR • Restaurants and cafés, where the room competes with the table • Family gatherings, and the quiet voices of grandchildren • Lectures, services, meetings and talks • Across-the-room listening — leave your iPhone near the speaker and hear them from your seat • Television, without turning it up for everyone else WORKS WITH WHAT YOU ALREADY WEAR AirPods, most Bluetooth headphones, Made for iPhone hearing aids and cochlear implants. No extra hardware, nothing to buy, nothing to charge. PRIVATE BY DESIGN Every word is processed on your iPhone. The audio never leaves your device — nothing is uploaded, nothing is recorded, nothing is kept. An account is optional and never required to listen, which is the only acceptable answer for something you'd wear at a family table. BUILT AROUND ONE BUTTON Start on the Lock Screen, in the Dynamic Island, from a widget, or by asking Siri. Large-text support and VoiceOver throughout. FAST ENOUGH TO FOLLOW A CONVERSATION 8 ms latency wired, 98 ms wireless — so the voice you hear stays in step with the face you're watching. Questions? contact@clir.ai clir Hearing is not a medical device and is not intended to diagnose, treat, cure, or prevent any medical condition or hearing loss. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SmarterNoise4 screens
clir Hearing4 screens

Verdict

The call

The clearest difference is rating: clir Hearing at 4.9 against SmarterNoise's 4.6. SmarterNoise's advantage is iOS requirement (12.0 vs 15.0). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SmarterNoise sells 2 one-off in-app purchases and clir Hearing sells 2 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

clir Hearing holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 117 and 90 respectively.

UpkeepUpdate frequency

SmarterNoise ships an update every 6 weeks, clir Hearing every 2 months. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
SmarterNoise versus clir Hearing: the parameters behind the verdict, then further details
ParameterSmarterNoiseclir Hearing
PriceFreeFree
Rating4.6 (117 ratings)4.9 (90 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings117 — better90
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size27 MB97 MB
Age rating12+4+
DeveloperJohan Rogardclir Technologies GmbH

Customer experience

SmarterNoise

All ratings102 ratings
Positive89.2%
Neutral4.9%
Negative5.9%
Written reviews24 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

clir Hearing

All ratings90 ratings
Positive97.8%
Neutral2.2%
Negative0.0%

In-app purchases

2 purchases

SmarterNoise

One-time2
  • Long-term measurement$1.99
  • Remove ads$2.99
2 purchases

clir Hearing

Subscriptions2
  • Monthly3 Days trial$11.991 Month
  • Yearly7 Days trial$89.991 Year

Questions

Is SmarterNoise free?
SmarterNoise is free to download, with in-app purchases available.
Is clir Hearing free?
clir Hearing is free to download, with in-app purchases available.
Which has better reviews, SmarterNoise or clir Hearing?
clir Hearing is rated higher. SmarterNoise averages 4.6 out of 5 from 117 ratings, while clir Hearing averages 4.9 from 90 ratings.
Do SmarterNoise or clir Hearing have ads?
Both SmarterNoise and clir Hearing show ads.
Which is updated more often, SmarterNoise or clir Hearing?
SmarterNoise ships an update every 6 weeks, and clir Hearing every 2 months. Most recently, SmarterNoise was updated on October 24, 2026 and clir Hearing on October 24, 2026.

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