# Audio / Spectrum Analyzer vs TB Spectrogram

The clearest difference is in-app purchases: TB Spectrogram at none against Audio / Spectrum Analyzer's 1. TB Spectrogram also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.0). Audio / Spectrum Analyzer's advantage is ratings volume (1K vs 50). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Audio / Spectrum Analyzer sells 1 one-off in-app purchase. TB Spectrogram asks for nothing beyond the download.

Audio / Spectrum Analyzer holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Audio / Spectrum Analyzer has 1K ratings behind it against 50, so its average is the more settled of the two. Written reviews point the same way: 79% of Audio / Spectrum Analyzer's written reviews are positive against 71% of TB Spectrogram's.

Audio / Spectrum Analyzer ships an update every 2 weeks, TB Spectrogram every 3 weeks. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Audio / Spectrum Analyzer | TB Spectrogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574/reviews)** | [4.4 (50 ratings)](https://appshunter.io/ios/app/tb-spectrogram/id1530170842/reviews) |
| Number of ratings | **1K** | 50 |
| Positive reviews | **78.6% of reviews** | 71.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 5 MB | 15 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### Audio / Spectrum Analyzer

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574)

This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.

**Highlights:** Simultaneous waveform and spectrum display, Configurable display layouts, Selectable FFT size and averaging, Frequency weighting options (Flat, dBA, dBC), Octave band analysis, Audio signal and noise generation, Peak hold and pitch meter

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Remove ads, High-Res analysis) | $11.99 | one-time |

**What reviewers like**

- 👍 Customizable features
- ⚙️ Accurate measurements
- 🚀 Helpful for troubleshooting
- 💡 Useful for ghost hunting

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔋 High battery and CPU usage
- 🚫 Inappropriate ads/content
- 🔒 Security concerns with payment info

**Reported bugs**

- Stuck on latest measurement
- White noise instead of expected functionality
- Disconnects AirPods

**Requested features**

- Sampling rate adjustment
- Wave shape tracking
- Audio file analysis
- Octave analysis


### 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 free?

Audio / Spectrum Analyzer 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 or TB Spectrogram?

Audio / Spectrum Analyzer is rated higher. Audio / Spectrum Analyzer averages 4.6 out of 5 from 1K ratings, while TB Spectrogram averages 4.4 from 50 ratings.

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

Audio / Spectrum Analyzer shows ads; TB Spectrogram does not.

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

Audio / Spectrum Analyzer ships an update every 2 weeks, and TB Spectrogram every 3 weeks. Most recently, Audio / Spectrum Analyzer was updated on September 29, 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.*