# WOW DB Meter & RTA

> WOW DB Meter & RTA (iPhone/iPad app by EZ CORP SOFTWARES LTDA.)

- Source: https://appshunter.io/ios/app/wow-db-meter-and-rta/id6817171749 (this page in markdown: same URL + `.md`)
- Developer: [EZ CORP SOFTWARES LTDA](https://appshunter.io/developer/6810803414)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 23 MB
- Languages: American English
- Released: 2026-10-13
- Data updated: 2026-10-17

## What is WOW DB Meter & RTA?

WOW DB Meter & RTA turns your iPhone and iPad into a professional-grade acoustic measurement tool and real-time audio spectrum analyzer (RTA). Engineered with precision DSP algorithms and fluid 60 FPS GPU-accelerated graphics, it is the ultimate tool for audio engineers, acoustic consultants, studio musicians, live sound technicians, and car audio enthusiasts.

KEY FEATURES:

• PRECISION DECIBEL (SPL) METER
- Accurate real-time sound pressure level measurement in dB.
- Industry-standard frequency weighting curves: dBA (human hearing response), dBC (bass/industrial sound), and dBZ (unweighted flat response).
- Configurable response times: Fast (125ms), Slow (1000ms), and Room Impulse (2000ms).
- Dynamic analog-style circular gauge with live peak indicator, numerical readout, and minimum / average / maximum dB stats tracking.

• REAL-TIME AUDIO ANALYZER (RTA)
- High-resolution Fast Fourier Transform (FFT) spectrum analysis with Hann windowing.
- Multi-band octave band views: 1/1 Octave (10 ISO standard center bands) and 1/3 Octave (31 precision bands).
- Pro 1/6 Octave High-Resolution mode (61 bands) for surgical room mode inspection and feedback suppression.
- Continuous spectral curve mode with lingering peak decay indicators.
- Interactive touch-to-inspect bar feature displaying exact frequency (Hz) and amplitude (dB).

• MULTI-TARGET ACOUSTIC CURVES
- Overlay reference acoustic targets directly onto your live RTA to tune speaker systems and home theaters:
  - Harman Target Curve (+6dB bass shelf)
  - Studio Flat (Reference calibration)
  - SMPTE 202M X-Curve (Cinema sound tuning)

• BUILT-IN PINK NOISE GENERATOR
- Integrated high-fidelity pink noise generator using the Kellet algorithm for room equalization, speaker voicing, and frequency response analysis.
- Live output volume attenuation slider.

• HARDWARE CALIBRATION & MIC PROFILES
- Pre-calibrated hardware profiles optimized for Apple iPhone and iPad internal microphones.
- Manual SPL trim adjustment (±15 dB) with one-tap 94.0 dB external calibrator reference mode.

• RESPONSIVE STUDIO WORKSPACE
- Optimized for both portrait handheld metering and landscape full-screen RTA visualization.
- Native iPad split-view and tablet support.

DISCLAIMER:
WOW DB Meter & RTA is designed as a high-precision acoustic reference and sound tuning aid. It is not intended for use as a legally certified industrial metrology device.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| WOW DB Meter PRO Monthly | $2.99 | per month |
| PRO Annual (Save 45%) | $19.99 | per year |


## Is WOW DB Meter & RTA safe?

Not enough ratings yet to assess WOW DB Meter & RTA.

## Is WOW DB Meter & RTA legit?

WOW DB Meter & RTA has limited verification signals. The AppsHunter Legitimacy Score for WOW DB Meter & RTA is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-13

No release notes.

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## More apps by EZ CORP SOFTWARES LTDA

- [WOW Pads - Live Stage Rig](https://appshunter.io/ios/app/wow-pads-live-stage-rig/id6810803412)

All apps by EZ CORP SOFTWARES LTDA: https://appshunter.io/developer/6810803414

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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 2026-10-17.*