Comparison

OpeNoise vs AirQ Mobile

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

Head to head
About

OpeNoise

This application measures real-time sound pressure levels, displaying minimum and maximum values. It offers advanced analysis like third octave and FFT, with options to save data, calibrate, and share measurements with a community. Note: it is not intended for professional use.

Highlights
  • Real-time A-weighted sound pressure level measurement
  • Minimum and maximum level tracking
  • Third octave and FFT analysis
  • Data saving in text file
  • Calibration functionality
  • Measurements displayed on a map
  • Community sharing of calibration and measurements
Features
Read full description

OpeNoise is a real-time noise level meter. TECHNICAL SPECIFICATIONS: - Real-time A-weighted sound pressure level measurement - Minimum and maximum level - Third octave and FFT analysis - Data saving in text file - Calibration - Displaying measurements on a map - Metadata compilation - Sharing calibration and measurements with the OpeNoise community TERM OF USE This app is not intended for professional use, it does not necessarily guarantee an accurate noise measurement. Since each device has a different response to noise, a comparison with a professional noise level meter in the measurement dynamic range is required. The utilization of the app requires adequate technical knowledge and skill; an extemporary measurement might not be correct. The calibrations and measurements sent to the OpeNoise community will be used for statistical purposes only and cannot be used in any way to verify compliance with legal limits. CREDITS Developers: Arpa Piemonte (Regional Agency for the Protection of the Environment of Piedmont - Italy - www.arpa.piemonte.it). The code is open source under GNU v.2 license or later, the code is on GitHub: https://github.com/Arpapiemonte/ KEYWORDS noise level meter, level, sound, noise, measure, measurement, dB, db, dBA, dB(A), decibel

About

AirQ Mobile

Features
Read full description

The purpose of this application is to collect air quality data in real time from the sensors installed in the moving vehicle. This data can then be visualized in the cab as well as viewed back at the base. The application will collect the data from the sensor and GPS coordinates in real time so the pollution plume can be tracked from an incident and evacuation can be advised if necessary. This application will store the data in the local database and display the live data in 3D maps. It will also upload the data to the central database which can then be visualized on the web application anywhere.

Screenshots

OpeNoise4 screens
AirQ Mobile4 screens

Verdict

The call

The clearest difference is update cadence: AirQ Mobile at fortnightly against OpeNoise's every 7 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OpeNoise ships an update every 7 months, AirQ Mobile fortnightly. The most recent releases landed on October 13, 2026 and September 8, 2026 respectively.

Scorecard1 real difference · 9 level
OpeNoise versus AirQ Mobile: the parameters behind the verdict, then further details
ParameterOpeNoiseAirQ Mobile
PriceFreeFree
Rating4.0 (4 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings4 — better—
Update frequencyEvery 7 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015
Further details — not scored
Size12 MB45 MB
Age rating4+17+
DeveloperArpa PiemonteTurnkey Instruments Ltd

In-app purchases

None

OpeNoise

No in-app purchases

None

AirQ Mobile

No in-app purchases

Questions

Is OpeNoise free?
OpeNoise is free to download, with no in-app purchases.
Is AirQ Mobile free?
AirQ Mobile is free to download, with no in-app purchases.
Do OpeNoise or AirQ Mobile have ads?
Neither OpeNoise nor AirQ Mobile shows ads.
Which is updated more often, OpeNoise or AirQ Mobile?
OpeNoise ships an update every 7 months, and AirQ Mobile fortnightly. Most recently, OpeNoise was updated on October 13, 2026 and AirQ Mobile on September 8, 2026.

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