Comparison

SmarterNoise vs clir Voice

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 Voice

Record audio, reduce background noise, and generate searchable transcripts with AI. This app offers offline functionality, speaker labeling, and AI-powered summaries for meetings, lectures, and more. Enhance your audio and video recordings with studio-quality sound.

Highlights
  • Offline recording and transcription
  • AI noise reduction (Plus & Ultra)
  • AI voice reconstruction (Ultra)
  • Filler word and silence removal
  • Live captions and speaker labels
  • AI summaries with key points
  • Import audio and video clips
Features
Read full description

Record speech, remove noise and get a searchable transcript. Works offline. Your audio is never uploaded. A sound studio in your pocket. Use clir Voice on iPhone and iPad for meetings, lectures, interviews, podcasts, voice notes and video clips. Import call recordings or keep a record of client and patient sessions. CHOOSE HOW YOUR RECORDING SOUNDS Plus removes background noise from cafés, traffic, wind and rooms. The voice stays as recorded. Ultra removes background noise and reverb or echo, then rebuilds the voice with AI for studio mic sound. Use it for echoey halls, distant speakers and audio you want to publish. AI voice reconstruction can occasionally change a word. Ambience mode does the opposite: remove the voices and keep the background sound. CLEAN UP WHAT YOU SAID Remove Fillers takes out the ums and uhs, and Tighten Pauses shortens long silences, from Gentle to Snappy. clir Voice finds them on your iPhone, and you can listen to each one first. Exports keep your edits, for audio and video. READ AS YOU RECORD Follow live captions while recording. Get a full transcript with speaker labels so you can see who said what. Transcription follows the spoken language automatically, even when speakers switch languages mid-recording. Supported languages: English, German, French, Spanish, Italian, Dutch and Portuguese. FIND THE EXACT MOMENT Search across all your recordings. Tap a word in the search results to jump to that exact second. Add marks while recording or listening to flag a quote, decision or idea. CLEAN UP VIDEO SOUND Import a video clip, clean up its sound with Ultra and export the video ready to post. Bring in recordings from Voice Memos, messaging apps, Files or your camera roll. GET THE KEY POINTS Generate AI summaries with key points and action items on your device. Requires an Apple Intelligence-compatible device. RECORD FROM YOUR WRIST Record on Apple Watch. The recording transfers to your iPhone for transcription and, with Plus or Ultra, audio cleanup. Your watch can also start, mark and stop a recording on your iPhone and show live captions. WORK OFFLINE Noise removal and transcription run on your device. Your audio is never uploaded. Record, clean up and transcribe even in airplane mode. Record, import and play audio, and preview the enhancements. Plus and Ultra are subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SmarterNoise4 screens
clir Voice4 screens

Verdict

The call

SmarterNoise and clir Voice both sit at 4.6 stars, but that hides the real split: 75% of SmarterNoise's written reviews are positive against 25% of clir Voice's. SmarterNoise also leads on iOS requirement (12.0 vs 17.0). clir Voice's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 6 weeks). On price, rating, ratings volume and in-app purchases 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 Voice sells 10 in-app purchases, starting at $18.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

clir Voice holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 118 and 122 respectively. Written reviews complicate that: 75% of SmarterNoise's written reviews are positive against 25% of clir Voice's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SmarterNoise ships an update every 6 weeks, clir Voice every 3 weeks. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
SmarterNoise versus clir Voice: the parameters behind the verdict, then further details
ParameterSmarterNoiseclir Voice
PriceFreeFree
Rating4.6 (118 ratings)4.8 (122 ratings) — better
Positive reviews75.0% of reviews — better25.0% of reviews
Number of ratings118122 — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS12.0 — better17.0
Further details — not scored
Size27 MB50 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 Voice

All ratings122 ratings
Positive96.7%
Neutral0.8%
Negative2.5%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

2 purchases

SmarterNoise

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

clir Voice

Subscriptions5
  • Starter$18.991 Month
  • Super$24.991 Month
  • Ultra$29.991 Month
Show 2 more
  • 6-Month Subscription$169.996 Months
  • Yearly Subscription$299.991 Year
One-time5
  • 30min of free AI ProcessingFree
  • Small$4.99
  • 3 Hours$4.99
Show 2 more
  • Large$10.99
  • Extra Large$19.99

Questions

Is SmarterNoise free?
SmarterNoise is free to download, with in-app purchases available.
Is clir Voice free?
clir Voice is free to download, with in-app purchases available.
Which has better reviews, SmarterNoise or clir Voice?
clir Voice is rated higher. SmarterNoise averages 4.6 out of 5 from 118 ratings, while clir Voice averages 4.8 from 122 ratings.
Do SmarterNoise or clir Voice have ads?
SmarterNoise shows ads; clir Voice does not.
Which is updated more often, SmarterNoise or clir Voice?
SmarterNoise ships an update every 6 weeks, and clir Voice every 3 weeks. Most recently, SmarterNoise was updated on November 2, 2026 and clir Voice on November 7, 2026.

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