# Sound Pressure: Audio SPL — Measure Sound Precisely

> Measure Sound Precisely (iPhone/iPad app by Kyu-Hee Jang.)

- Source: https://appshunter.io/ios/app/sound-pressure-audio-spl/id6761872775 (this page in markdown: same URL + `.md`)
- Developer: [Kyu-Hee Jang](https://appshunter.io/developer/1587578867)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 32 MB
- Languages: English
- Released: 2026-04-15
- Data updated: 2026-05-21
- User reviews in markdown: https://appshunter.io/ios/app/sound-pressure-audio-spl/id6761872775/reviews.md

## What is Sound Pressure?

Sound Pressure turns your iPhone into a real-time dB SPL meter. Using your device's microphone, it captures ambient noise levels in decibels — perfect for workplace safety checks, audio system tuning, music venue compliance, or simply finding the quietest spot in a coffee shop.

Watch the live readout, monitor min/max/average over time, and see the dB trend on a scrolling chart. Start a recording session to capture noise patterns, then export everything as CSV for review.

Key Features:
- Real-time dB SPL measurement via microphone
- Min, max, and rolling average tracking
- Live dB chart with scrolling history
- Session recording with timestamps
- CSV export for full sessions
- Minimum dB filter to ignore silence
- Sample rate display for transparency
- Clean, high-contrast dark interface

Perfect for HVAC technicians, audio engineers, OHS inspectors, music teachers, parents checking child noise exposure, or anyone curious about how loud their world is. Know your decibels — instantly.


## Version history (last 3 releases)

### 1.0.6 — 2026-05-14

- Performance and stability improvements
- Updated ad personalization handling for EEA users

### 1.0.3 — 2026-04-15

- New Directional Audio Monitor UI
- Spatial cross display for 4-direction dB levels
- Danger warning badge for high exposure
- Listening mode cards for Room, Venue, and Safety
- Improved stability and error handling

### 1.0.2 — 2026-04-15

No release notes.

## More apps by Kyu-Hee Jang

- [Calculator+ Tip Tax BMI Unit](https://appshunter.io/ios/app/calculator-plus-tip-tax-bmi-unit/id1587591476)
- [QR Lens+ Barcode Scanner Pro](https://appshunter.io/ios/app/qr-lens-plus-barcode-scanner-pro/id1590631012)
- [Sound Noise Meter+ dB SPL](https://appshunter.io/ios/app/sound-noise-meter-plus-db-spl/id1593197145)
- [Tremor Vibration Meter](https://appshunter.io/ios/app/tremor-vibration-meter/id6759666731)
- [Lux Light Meter - Luminance](https://appshunter.io/ios/app/lux-light-meter-luminance/id6759858193)
- [Barometer: Air Pressure](https://appshunter.io/ios/app/barometer-air-pressure/id6759883097)

All apps by Kyu-Hee Jang: https://appshunter.io/developer/1587578867

## Related topics

[Hướng dẫn lập hồ sơ công việc](https://appshunter.io/ios/topics/h-ng-d-n-l-p-h-s-c-ng-vi-c)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-21.*