# Live Spectrogram — user reviews

> 8 indexed App Store user reviews of Live Spectrogram by Krueger Systems, Inc., rated 4.80/5 from 6 ratings.

- Source: https://appshunter.io/ios/app/live-spectrogram/id630831185/reviews
- App overview in markdown: https://appshunter.io/ios/app/live-spectrogram/id630831185.md
- Rating breakdown: 5★ 5 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (8 lowest-rated)

### 1/5 — Broken! (Frequency bands are not displayed)

*2017-07-08*

This is a very simple app showing a spectrograph, but the frequency bands displayed in the y-axis just show up as boxes with no labels.

**Developer response:** Hello, I have updated the app and hope you'll take another look

### 2/5 — Naja…

*2024-07-15*

Die Anzeige besteht oft nur aus flimmernden Glitches und ist daher nicht wirklich brauchbar. Außerdem verursacht sie sehr viel CPU-Last, sodass sie nur kurz benutzt werden sollte. Alles in allem gibt es bessere Apps für diese Analysen. 
Zum Glück war der Kaufpreis nicht so hoch…

### 3/5 — good, needs an options menu

*2013-06-14*

pinch-zooming is very useful for pinpointing mid frequencies,though update response is choppy and I would have liked some options to change window size. there also needs to be a switch for logarithmic frequency scaling - linear display is only useful in a handful of situations. all and all a good design that just needs a bit of user customization

### 4/5 — pretty good

*2024-10-29*

it would be nice if i could zoom in more, but still does all i need well enough.

### 4/5 — Needs just 1 thing

*2015-12-19*

Please add a save feature. Works perfect but there have been times where I have needed to compare sound levels I can't because if I close the app it erases everything.

### 5/5 — exactly what I needed

*2026-03-20*

useful for identifying frequencies. would be great if there were settings to change bandwidth and export data to CSV

### 5/5 — Very Detailed Sound Data In High Resolution

*2025-11-21*

This app is simple, but really nice. Of course the better your mic is, the better it will work. I’m using an iPhone 16 which has a really good microphone, and it can pick up sound frequencies that I can’t even hear with my ears. It’s neat to see the real time sounds being printed on the spectrogram. I suppose if I were to want additional features, it would be the ability to record, and also maybe see a history of one minute or two of past sounds. Other than that, I love it and I feel it was worth $2.

### 5/5 — Love it

*2015-07-27*

EASILY one of the best Spectrogram apps of 2015

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*