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Acoustic Physics & Dosimetry

PocketDecibel

Turn your iPhone into a laboratory-grade Class 1/2 sound level meter and occupational noise dosimeter.

Real-time dBA / dBC / dBZ sound pressure level measurement, 1/1 & 1/3 octave RTA spectrum analysis, and continuous OSHA & NIOSH exposure tracking with exportable PDF calibration reports.

Explore Features
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Engineered for Precision

Pure specialized functionality built with uncompromising performance.

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Calibrated SPL Meter

Real-time sound pressure level tracking featuring dBA, dBC, and dBZ frequency weightings with Fast (125ms) and Slow (1s) time ballistics.

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Real-Time Spectrum RTA

High-resolution Fast Fourier Transform (FFT) spectrum analysis powered by Apple's Accelerate framework with octave band bars.

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OSHA & NIOSH Dosimetry

Automated occupational noise exposure calculation, Time-Weighted Average (TWA), and projected 8-hour dosage accumulation.

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Formal PDF Session Reports

Export timestamped acoustic certification reports complete with Lmax, Lmin, Leq, and spectral distribution charts.

Experience PocketDecibel

Designed natively for iOS with fluid animations and tactile controls.

PocketDecibel Screenshot
PocketDecibel Screenshot
PocketDecibel Screenshot
PocketDecibel Screenshot

Transparent Pricing

Start free. Upgrade anytime with transparent monthly, annual, or perpetual options.

Free Tier
Free
Core Utility

Basic dBA sound level metering, instant peak capture, and digital level readouts.

Pro Monthly
$4.99
Per Month

Full RTA spectrum analyzer, continuous dosimetry logs, and microphone calibration.

Pro Annual
$29.99
Per Year (3-Day Free Trial)

Unlimited PDF audit exports, multi-session archiving, and priority acoustic tool updates.

Customer Support & Feedback

Have questions, feature requests, or need technical assistance with PocketDecibel? Our team is available 24/7 to support you.

Email Support (Contact via kreggscode.com/#contact) Privacy Policy Terms of Service