OpeNoise
Arpa Piemonte Utilities iPhoneiPadiPod touch
OpeNoise is a free Utilities app for iPhone and iPad by Arpa Piemonte. Rated 4.0/5 from 4 ratings. Requires iOS 15.0. Updated October 8, 2026.
- Rating
- 4.0
- 4 ratings
- Price
- Free
- on the App Store
- Size
- 12 MB
- Age 4+
- Updated
- Oct 8
- 2026 · v3.4.1
Screenshots
About OpeNoise
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
What’s new
Version 3.4.1 · Updated October 8, 2026
Performance improvement and minibug resolution
App privacy
The developer, Arpa Piemonte, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to OpeNoise
Looking for apps like OpeNoise? Here are 6 similar apps on the App Store. The highest rated is Audio Analyst (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| OpeNoise | 4.0 / 5 (4 ratings) | Free | October 8, 2026 | |
| Audio Analyst | 5.0 / 5 (1) | Free | Aug 29, 2026 | Compare |
| PAcalculate | 5.0 / 5 (7) | Free | May 26, 2026 | Compare |
| SmarterNoise | 4.6 / 5 (117) | Free | Jul 13, 2026 | Compare |
| HAA CinemaTools with HAA Link | 5.0 / 5 (1) | Free | Oct 20, 2026 | Compare |
| CJDecibel - Noise Detection | 5.0 / 5 (2) | Free | Apr 3, 2024 | Compare |
| dBMeter - Decibelmeter | 3.6 / 5 (8) | Free | Feb 24, 2026 | Compare |
Compare OpeNoise with the top alternatives: ratings, updates, ASO score and keyword gaps →