# Decibel Meter dB Spectrum — Sound Audio Hertz Level Reader

> Sound Audio Hertz Level Reader (iPhone/iPad app by Ahmet Giray Ucar.)

- Source: https://appshunter.io/ios/app/decibel-meter-db-spectrum/id6747271171 (this page in markdown: same URL + `.md`)
- Developer: [Ahmet Giray Ucar](https://appshunter.io/developer/1583246836)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 7 MB
- Languages: American English, Arabic, French (France), Korean, Brazilian Portuguese, Chinese (Simplified, China), Latin American Spanish, Chinese (Traditional, Taiwan)
- Released: 2025-06-16
- Data updated: 2026-08-21
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-db-spectrum/id6747271171/reviews.md

## What is Decibel Meter dB Spectrum?

Desi is the ultimate sound level meter app that brings laboratory-precision noise measurement to your iOS device. Whether you're protecting your hearing, monitoring workplace compliance, or simply curious about your acoustic environment, Desi delivers accurate, real-time decibel readings with stunning visual clarity.

Professional Accuracy
Calibrated SPL measurements from 30-130 dBA
Multiple frequency weighting filters (A, B, C, Z, ITU-R 468)
Variable time weighting (SLOW, FAST, IMPULSE)
Pre-calibrated for Apple devices with custom calibration support

Advanced Analytics
Real-time FFT spectrum analysis
Live waveform visualization
Dominant frequency detection
Professional-grade audio processing at 44.1kHz

Health & Safety Features
Daily noise exposure tracking with TWA calculations
HealthKit integration for hearing health monitoring
OSHA/NIOSH compliance monitoring

Beautiful Interface
Multiple stunning display modes: Digital, Analog, FFT, Spectrum
Color-coded level indicators for instant recognition

Smart Recording
Save and analyze measurement sessions
Comprehensive history with search functionality


Premium Features:
- Record unlimited measurement sessions
- Full access to recording history and session management
-Access to all meter types: Analog, Digital, FFT, and Spectrum

Privacy & Security
Your data stays yours. Desi processes all audio locally on your device with no cloud processing. Optional HealthKit integration puts you in complete control of your health data sharing.

Privacy Policy: https://docs.google.com/document/d/1pxwLuTzWKrYfWHWi58DcdwJlvMhyv4r1GUXKPAGUZao/edit?usp=sharing
Terms of Use: https://docs.google.com/document/d/1a5P-1lgEMU5jyKjzAzVjD7_UvhT4yYPhnZofhpV0mTc/edit?usp=sharing

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Desibe Meter Pro Monthly | $9.99 | per month |
| Desibel Meter Pro Yearly | $29.99 | per year |
| Desibel Weekly Discounted | $2.99 | per 7 days |
| Desibel Meter Pro Weekly | $3.99 | per 7 days |



## Version history (last 2 releases)

### 1.1 — 2025-12-03

This update includes visual improvements.

### 1.0 — 2025-06-16

No release notes.

## Apps similar to Decibel Meter dB Spectrum

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,118) | Free | Utilities |
| [Decibel Meter - Sound Analyzer](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1579747105) | 3.5 (54) | Free | Utilities |
| [Decibel Meter - dB Noise Level](https://appshunter.io/ios/app/decibel-meter-db-noise-level/id6744018521) | 4.8 (50) | Free | Utilities |
| [Decibel Meter Sound Level dB](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369) | 4.4 (24) | Free | Utilities |
| [Decibel Meter - dB Noise Meter](https://appshunter.io/ios/app/decibel-meter-db-noise-meter/id6504185770) | 4.5 (2) | Free | Utilities |
| [Sound Meter HQ](https://appshunter.io/ios/app/sound-meter-hq/id1093419762) | 4.8 (346) | Free | Utilities |

## More apps by Ahmet Giray Ucar

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- [Case Simulator for Valorant](https://appshunter.io/ios/app/case-simulator-for-valorant/id1661473901)
- [Financy Manager](https://appshunter.io/ios/app/financy-manager/id6443679954)
- [MapZone-Location Based Alarm](https://appshunter.io/ios/app/mapzone-location-based-alarm/id6443994252)
- [ReadMyDoc: OCR Reader Scanner](https://appshunter.io/ios/app/readmydoc-ocr-reader-scanner/id6446174780)

All apps by Ahmet Giray Ucar: https://appshunter.io/developer/1583246836

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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 2026-08-21.*