# Measuring Center vs Audio Spectrum Analyzer Pro

The clearest difference is rating: Audio Spectrum Analyzer Pro at 4.4 against Measuring Center's 1.0. Audio Spectrum Analyzer Pro also leads on review sentiment (57% vs 19%) and ratings volume (239 vs 2). Measuring Center's advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. Measuring Center asks for nothing beyond the download.

Audio Spectrum Analyzer Pro holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 239 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 19% of Measuring Center's written reviews are positive against 57% of Audio Spectrum Analyzer Pro's.

Measuring Center ships an update every 2 months, Audio Spectrum Analyzer Pro every 7 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Measuring Center | Audio Spectrum Analyzer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/measuring-center/id1052916114/reviews) | **[4.4 (239 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews)** |
| Number of ratings | 2 | **239** |
| Positive reviews | 18.5% of reviews | **57.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 40 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Berezin](https://appshunter.io/developer/1052916113) | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) |

## What reviewers say

### Measuring Center

[App page](https://appshunter.io/ios/app/measuring-center/id1052916114)

This application allows users to perform spectral analysis of sound using their mobile devices. It supports various measurement functions and can connect to both wired and wireless external devices, or use the device's built-in microphone.

**Highlights:** Spectral sound analysis, Amplitude-frequency characteristic (AFC) display, Signal waveform display, Total harmonic distortion (THD) measurement, Sound pressure level (SPL) measurement, Support for wired and wireless Spl-Lab devices, Built-in microphone support

**Features:** macOS Compatibility

**In-app purchases:** none


### Audio Spectrum Analyzer Pro

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806)

Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

**Highlights:** Octave Band Real Time Analyzer, FFT Plot (Fast Fourier Transform), Sound level meter (dB meter), Noise Rating and Noise Criterion support, Support for external microphones, Pre-calibrated mic profiles

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Mode | $19.99 | per year |
| Premium Pack | $29.99 | one-time |

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 💰 Completely free with no ads
- 🎯 Accurate frequency and spectrum analysis
- 📊 Multiple visualization modes (FFT, spectrograph, bar display)
- 🔧 Professional-grade audio measurement tool

**What reviewers complain about**

- 💸 Aggressive subscription/paywall nags
- 🔄 Frequent iOS compatibility issues after updates
- 📉 Features moved behind paywall in recent updates
- 🐛 App crashes on startup (especially iOS 16/26)
- ⚠️ Misleading free trial that requires payment

**Reported bugs**

- App crashes on iOS 16 and iOS 26 launches
- FFT resolution not working after iOS updates
- Graph display freezes or becomes unresponsive
- Spectrograph mode too slow on newer iPhones
- Frequency alignment issues with dynamic display

**Requested features**

- Audio file upload capability
- White noise/test signal generator
- Microphone calibration file support
- Recording functionality with timestamp
- Multiple frequency cursors for comparison


## Frequently asked questions

### Is Measuring Center free?

Measuring Center is free to download, with no in-app purchases.

### Is Audio Spectrum Analyzer Pro free?

Audio Spectrum Analyzer Pro is free to download, with in-app purchases available.

### Which has better reviews, Measuring Center or Audio Spectrum Analyzer Pro?

Audio Spectrum Analyzer Pro is rated higher. Measuring Center averages 1.0 out of 5 from 2 ratings, while Audio Spectrum Analyzer Pro averages 4.4 from 239 ratings.

### Do Measuring Center or Audio Spectrum Analyzer Pro have ads?

Neither Measuring Center nor Audio Spectrum Analyzer Pro shows ads.

### Which is updated more often, Measuring Center or Audio Spectrum Analyzer Pro?

Measuring Center ships an update every 2 months, and Audio Spectrum Analyzer Pro every 7 months. Most recently, Measuring Center was updated on November 2, 2026 and Audio Spectrum Analyzer Pro on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*