# TB Spectrogram vs Black Distortion

The clearest difference is rating: Black Distortion at 5.0 against TB Spectrogram's 4.4. Black Distortion also leads on monetization model (free with in-app purchases vs paid). TB Spectrogram's advantage is update cadence (every 3 weeks vs every 61 months) and iOS requirement (13.0 vs 15). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Black Distortion holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 50 and 24 respectively. Written reviews complicate that: 71% of TB Spectrogram's written reviews are positive against 67% of Black Distortion's, so the app with the better star average is not the one people write more warmly about.

TB Spectrogram ships an update every 3 weeks, Black Distortion every 61 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | TB Spectrogram | Black Distortion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (50 ratings)](https://appshunter.io/ios/app/tb-spectrogram/id1530170842/reviews) | **[5.0 (24 ratings)](https://appshunter.io/ios/app/black-distortion/id1578909355/reviews)** |
| Number of ratings | **50** | 24 |
| Positive reviews | **71.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 61 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 15 MB | 42 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ToneBoosters](https://appshunter.io/developer/1472446500) | [Nembrini Audio](https://appshunter.io/developer/1493296895) |

## What reviewers say

### 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


### Black Distortion

[App page](https://appshunter.io/ios/app/black-distortion/id1578909355)

This audio plugin emulates a classic distortion pedal, offering versatile gain levels from mild overdrive to fuzzy tones. It features a unique filter control to shape high-end frequencies and a volume control for perfect integration with your existing sound. Use it as a primary distortion, a dirty channel for amplifiers, or a boost for solos.

**Highlights:** RAT2 distortion pedal emulation, Adjustable gain from overdrive to fuzz, Legendary filter control for treble shaping, Volume control for clean tone matching, Standalone, AudioUnit v3, and Inter-App Audio support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TB Spectrogram free?

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

### Is Black Distortion free?

Black Distortion is free to download, with no in-app purchases.

### Which has better reviews, TB Spectrogram or Black Distortion?

Black Distortion is rated higher. TB Spectrogram averages 4.4 out of 5 from 50 ratings, while Black Distortion averages 5.0 from 24 ratings.

### Do TB Spectrogram or Black Distortion have ads?

Neither TB Spectrogram nor Black Distortion shows ads.

### Which is updated more often, TB Spectrogram or Black Distortion?

TB Spectrogram ships an update every 3 weeks, and Black Distortion every 61 months. Most recently, TB Spectrogram was updated on November 3, 2026 and Black Distortion on November 8, 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.*