# Audio Spectrum Analyzer Pro vs TB Spectrogram

The clearest difference is in-app purchases: TB Spectrogram at none against Audio Spectrum Analyzer Pro's 2. TB Spectrogram also leads on update cadence (every 3 weeks vs every 7 months) and review sentiment (71% vs 57%). Audio Spectrum Analyzer Pro's advantage is ratings volume (238 vs 50). On price, rating, 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. TB Spectrogram asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Audio Spectrum Analyzer Pro against 4.4 for TB Spectrogram. Both are backed by a comparable volume of ratings — 238 and 50 respectively. Written reviews are what separate them: 57% of Audio Spectrum Analyzer Pro's written reviews are positive against 71% of TB Spectrogram's.

Audio Spectrum Analyzer Pro ships an update every 7 months, TB Spectrogram every 3 weeks. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Audio Spectrum Analyzer Pro | TB Spectrogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (238 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews) | [4.4 (50 ratings)](https://appshunter.io/ios/app/tb-spectrogram/id1530170842/reviews) |
| Number of ratings | **238** | 50 |
| Positive reviews | 57.4% of reviews | **71.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 40 MB | 15 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### 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


### TB Spectrogram

[App page](https://appshunter.io/ios/app/tb-spectrogram/id1530170842)

This app provides real-time audio analysis with a spectrogram, spectrum analyzer, and goniometer. It can be used as a standalone application or as an AUv3 plugin within compatible music production hosts. Visualize your audio in detail with adjustable settings and multiple display options.

**Highlights:** Real-time spectrogram and spectrum analysis, Goniometer for stereo signal analysis, AUv3 plugin compatibility, Adjustable frequency and time resolution, Customizable color themes, On-screen piano keyboard mapping

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio Spectrum Analyzer Pro free?

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

### Is TB Spectrogram free?

TB Spectrogram is free to download, with no in-app purchases.

### Which has better reviews, Audio Spectrum Analyzer Pro or TB Spectrogram?

Audio Spectrum Analyzer Pro and TB Spectrogram are both rated 4.4 out of 5 on the App Store, from 238 and 50 ratings respectively.

### Do Audio Spectrum Analyzer Pro or TB Spectrogram have ads?

Neither Audio Spectrum Analyzer Pro nor TB Spectrogram shows ads.

### Which is updated more often, Audio Spectrum Analyzer Pro or TB Spectrogram?

Audio Spectrum Analyzer Pro ships an update every 7 months, and TB Spectrogram every 3 weeks. Most recently, Audio Spectrum Analyzer Pro was updated on September 24, 2026 and TB Spectrogram on September 14, 2026.

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