Comparison

SmarterNoise Pro vs IziGate

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

Head to head
About

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.

Highlights
  • 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)
Features
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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.

About

IziGate

Features
Read full description

С помощью приложения можно организовать управление шлагбаумами или воротами для въезда на закрытую территорию. В блок открытия шлагбаума или ворот устанавливается Bluetooth-модуль, через который по защищенному каналу передаются закодированные команды для управления шлагбаума или ворот. Набор таких команд зависит от роли и предоставляемых прав пользователя. Администраторы и операторы объекта имеют полный доступ к Bluetooth-модулю: настраивать модуль, удалять и открывать его. Пользователи с максимальными правами управления и доступа могут также добавлять других пользователей с разными ролями. Обычный пользователь может только открывать устройство, ограничивающее въезд на территорию, а также добавлять ограниченное количество временных пользоватей. Временные пользователи могут только открывать устройство, ограничивающее въезд на территорию, в течение ограниченного времени или в период, пока другие пользователи с более расширенными правами предоставляют доступ к такому функционалу.

Screenshots

SmarterNoise Pro4 screens
IziGate4 screens

Verdict

The call

The clearest difference is in-app purchases: IziGate at none against SmarterNoise Pro's 4. IziGate also leads on update cadence (every 4 days vs monthly). SmarterNoise Pro's advantage is iOS requirement (12.0 vs 15.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SmarterNoise Pro sells 4 one-off in-app purchases. IziGate asks for nothing beyond the download.

UpkeepUpdate frequency

SmarterNoise Pro ships an update monthly, IziGate every 4 days. The most recent releases landed on September 22, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
SmarterNoise Pro versus IziGate: the parameters behind the verdict, then further details
ParameterSmarterNoise ProIziGate
PriceFreeFree
Rating4.4 (31 ratings) — better—
Positive reviews28.6% of reviews—
Number of ratings31 — better—
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size24 MB48 MB
Age rating12+17+
DeveloperJohan RogardMTECH SYSTEMS, TOO

In-app purchases

4 purchases

SmarterNoise Pro

One-time4
  • Camera upgrade$0.99
  • Frequency spectrum indicator$1.99
  • Video and audio recording$1.99
Show 1 more
  • Spectrogram display$1.99
None

IziGate

No in-app purchases

Questions

Is SmarterNoise Pro free?
SmarterNoise Pro is free to download, with in-app purchases available.
Is IziGate free?
IziGate is free to download, with no in-app purchases.
Do SmarterNoise Pro or IziGate have ads?
Neither SmarterNoise Pro nor IziGate shows ads.
Which is updated more often, SmarterNoise Pro or IziGate?
SmarterNoise Pro ships an update monthly, and IziGate every 4 days. Most recently, SmarterNoise Pro was updated on September 22, 2026 and IziGate on October 1, 2026.

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