# Analog Rack Delay vs TB Spectrogram

The clearest difference is update cadence: TB Spectrogram at every 3 weeks against Analog Rack Delay's every 5 months. TB Spectrogram also leads on iOS requirement (13.0 vs 15). Analog Rack Delay's advantage is review sentiment (100% vs 71%) and rating (4.8 vs 4.4). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Analog Rack Delay holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 32 and 50 respectively. Written reviews point the same way: 100% of Analog Rack Delay's written reviews are positive against 71% of TB Spectrogram's.

Analog Rack Delay ships an update every 5 months, TB Spectrogram every 3 weeks. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Analog Rack Delay | TB Spectrogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (32 ratings)](https://appshunter.io/ios/app/analog-rack-delay/id1494455748/reviews)** | [4.4 (50 ratings)](https://appshunter.io/ios/app/tb-spectrogram/id1530170842/reviews) |
| Number of ratings | 32 | **50** |
| Positive reviews | **100.0% of reviews** | 71.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 25 MB | 15 MB |
| Requires iOS | 15 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nembrini Audio](https://appshunter.io/developer/1493296895) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### Analog Rack Delay

[App page](https://appshunter.io/ios/app/analog-rack-delay/id1494455748)

This audio plugin offers the powerful delay algorithms of Nembrini Audio in a user-friendly package. It features BPM sync, a stereo spread circuit, and a rich analog tube preamp for unique signal coloration. Use it as a standalone app or within other music production software.

**Highlights:** Analog delay algorithms, BPM Sync, Stereo spread circuit, Tube preamp coloration, Standalone app, AudioUnit v3 effect, Inter-App Audio effect

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Analog Rack Delay free?

Analog Rack Delay is free to download, with no in-app purchases.

### Is TB Spectrogram free?

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

### Which has better reviews, Analog Rack Delay or TB Spectrogram?

Analog Rack Delay is rated higher. Analog Rack Delay averages 4.8 out of 5 from 32 ratings, while TB Spectrogram averages 4.4 from 50 ratings.

### Do Analog Rack Delay or TB Spectrogram have ads?

Neither Analog Rack Delay nor TB Spectrogram shows ads.

### Which is updated more often, Analog Rack Delay or TB Spectrogram?

Analog Rack Delay ships an update every 5 months, and TB Spectrogram every 3 weeks. Most recently, Analog Rack Delay was updated on September 28, 2026 and TB Spectrogram on September 27, 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.*