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