# SpectrumView Plus — user reviews

> 43 indexed App Store user reviews of SpectrumView Plus by Oxford Wave Research Ltd., rated 3.70/5 from 15 ratings.

- Source: https://appshunter.io/ios/app/spectrumview-plus/id571455198/reviews
- App overview in markdown: https://appshunter.io/ios/app/spectrumview-plus/id571455198.md
- Rating breakdown: 5★ 7 · 4★ 2 · 3★ 1 · 2★ 4 · 1★ 1

## Newest reviews (12 of 43)

### 3/5 — Ну как бы да, но…

*2026-08-12*

Напоминает SonicVisualizer, но…
В чем прикол, дать функцию зума по вертикали, но не сделать зум по времени?
Сделали кнопку панарамирования со стрелками во все 4 стороны, но по факту перемещать можно только по вертикали.
Сделали функцию анализа файла, но программа не показывает спектрограмму всего файла, а нужно вручную воспроизвести нужный тебе фрагмент файла и остановить в нужный момент (без возможности зума и панарамирования по оси времени)

Не советую

### 4/5 — Verbesserungsfähig

*2025-10-03*

Mag die App. Aber zwei Dinge stören mich: 
1. Start dauert viel zu lange. Brauche die App sofort einsatzbereit, das animierte Logo nervt nur.
2. Wenn ich meine Airpods 3 Pro trage, Musik höre und die App starte wird die Lautstärke voll aufgedreht.

**Developer response:** Sorry to hear about the issue you are facing. Can you please send an email to techsupport@oxfordwaveresearch.com and give us some more details on the issue? Your device model, iOs version, any other apps running simultaneously, etc.?

### 3/5 — 100 Hz 以下に問題

*2024-06-20*

Spectrogramで入力の周波数を対数目盛で見ると、約100 Hz以下の領域で音を拾えていない事がわかった。修正されると嬉しい。
使用機種はiPhone 12 Plus、iOSは最新。

**Developer response:** Thanks for using SpectrumView and for the review. We are really sorry for the inconvenience. Please send us an email at techsupport@oxfordwaveresearch.com and let us know more about your problem in order to help you better.

### 4/5 — Outstanding, but...

*2022-03-04*

I have used this software for years on my phone and the insights it has given to me have been phenomenal. I have used it to look at the sounds of musical instruments and the changing tonality of teacup-chings dependening where the tea cup is tapped.

The basic functionality is excellent, but I have struggled to try to download the data as a .csv file.

The web link given does not work and I have no idea how the alleged "iTunes file sharing" works.

Given how good the. rest of teh application is this is really disappoint - hence not 5 stars.

**Developer response:** Hi Dylan and thanks for your very nice review. If you could email the details of your experience when exporting csv data to techsupport@oxfordwaveresearch.com we can do our best to help.

### 4/5 — My issue is why won’t the grid lines STAY OFF

*2021-07-24*

It saves every setting I put in place through even restarts but it turns the grid lines on SPECIFICALLY, and CONSTANTLY, to a point where I’m wondering if it’s my phone glitching or the app, cause it’s not me, I would have accidentally pressed any other button in settings by now, but it’s just always the grid lines and I always find myself turning them off- BUT, that’s my only issue with the app, so if you like grid lines this may be a five star review for you.

### 4/5 — Crashes on playback

*2021-01-27*

The app crashes when I try to play an iTunes song.

### 3/5 — Free version is great; expected more from plus

*2016-09-01*

The free version is very cool. Pretty amazing for a free app.

The plus version, not so much.  In the time-domain view, you can't zoom in or out in the time domain (left/right); only up/down (frequency).  Also, in both versions, the time scale (x axis) has horrible increments and tick marks.  Like, 2.8 seconds, 5.7 seconds, 8.5 seconds (!!!). It's almost impossible to read the duration of any event, especially since you can't move the waveform left/right.

Another enhancement I'd like to see would be the ability to put a marker on multiple peaks in the spectrum analyzer and maybe even a peak finder.

In the time domain, the ability to put multiple markers and record the time between markets/events would be great.

### 4/5 — Exports to other programs.

*2015-07-15*

A good program is stable, but please add the function of record exports to other programs.

Хорошая программа, работает стабильно, но, пожалуйста добавьте функцию экспорта аудиозаписи в другие программы.

### 4/5 — 希望时间轴(time axis) 能够缩放(zoom)

*2015-02-07*

希望时间轴(time axis) 能够缩放(zoom)

### 3/5 — Sehr gut aber auf 5s roter Hintergrund

*2014-05-29*

Update bitte, da die Farben auf dem iPhone 5s falsch dargestellt sind. Stimmen nicht mit Scala überein.

### 5/5 — Intuitif et facile à utiliser

*2014-02-27, version 1.1.3*

Idéal pour tous ceux qui travaillent dans le son, appli a posséder absolument !!

### 4/5 — Solid Tool - Growth Path Suggestions

*2014-02-23*

As a long-time practitioner in the field of signal processing, I’d say Spectrum View+ is a nicely implemented and useful tool. It does many things well, and deserves to be on a solid path of continued updates. In that spirit, here are my suggestions for upgrades (I focus here only on the spectrogram mode )

* On my iPad2/iOS7, the major tick marks on the TIME  axis always come up with non-integer values (e.g. 0, 11.0, 21.9,…). This varies depending on the sample rate, #samples selected for the FFT length, etc. Please change this so the major time ticks are *always* Integers. This would make reading the display much easier. It would also be very useful to make the major time ticks multiples of say 1, 10 , 20, 60…  seconds, that sort of thing.

* We need a way to expand the TIME axis. This could be done via a ‘speed’ control that would set how fast the display scrolls in time. I realize this will interact with the FFT update rate and other parameters but that can be dealt with internally. Time stretch could also be implemented via a pinch function that would stretch the axis.

* Please add options for different spectrogram color mapping pallets. For example, grayscale, inverted grayscale, etc. There are many other standards in the ‘industry’.

* Please add a ‘brightness’ and ‘contrast’ slider for adjusting the display. I’m sure I speak for others out there who like to tweak knobs and adjust the display properties for spectrum viewing. Offset and gain are typical ways of providing this control.

* It would be very useful to have an alternate method of expanding the frequency axis. I would like to see an option to enter the frequency axis major increment *directly* via a manual entry. For example if I enter “100 Hz”, then that is what the major ticks will be. I realize this would require the horizontal reference lines to be automatically adjusted, but this approach would be very helpful.

All for now, 
Cheers - PLM

## Most critical reviews (10 lowest-rated)

### 1/5 — Wird nicht mehr gepflegt, stürzt ab

*2022-10-15*

Wird die App nicht mehr gepflegt? Das Speichern von Dateien zb in iCloud, Adobe Creative Cloud usw ist nicht mehr möglich. Es passiert nichts, stürzt ab oder es erscheint die Meldung, die Kommunikation zu irgendeiner ominösen Hilfs-App sei nicht möglich. Ausserdem: Wozu beim Start der App immer dieses ewig lange Intro mit Logo und Animation? Das frisst nur Zeit und ist absolut unnötig. Alle anderen Apps sind performant und blitzschnell - nur SpectrumView besteht (aus Eitelkeit der Entwickler?) darauf, dieses zeitfressende nervige Logo beim Start anzuzeigen.

**Developer response:** Vielen Dank für Ihr Feedback. Unsere App wird weiterhin gepflegt, jedoch konnten wir das beschriebene Problem leider nicht nachvollziehen. Unser QA Team wäre dankbar, wenn Sie die Details des Problems für besseres Verständnis in einer Email an techsupport@oxfordwaveresearch.com schildern könnten.

### 1/5 — Didn’t work for me

*2021-07-13*

Worthless. Settings keep resetting on their own —set sample rate and maximum frequency and they reset when I uploaded a couple tracks I wanted to analyze. Go change it again and play the track and guess what, reset! After doing this a countless number of times I gave up! Not too mention I have settings set to display spectrogram when using playback or record but no it just stays in playback! Also when I do switch to spectrogram view while playing a track I can’t pause or pan! I want my money back!!! I can’t deal with worthless waste of time!

### 1/5 — No support on paid version

*2014-09-09*

When I bought this using my 4S it worked great one of my fav apps. On my 5S the colormaps are all wrong. I reported the bug got no feedback and no new version since 2013.

### 1/5 — The plus version is crushing

*2013-01-13*

I purchased the plus version of the spectrum view app after I installed the free version. The plus version is crushing after the initial screen shows. It takes a split second for it to crush on my iphone 4. 

Your Immediate attention would be appreciated, otherwise I wasted money on app that does not work.

### 2/5 — Hard to use

*2025-10-24*

This app is not user friendly. The controls are clunky and hard to figure out. Also, you can’t see the spectrogram in landscape.. It used to work when you rotated the phone, but now it stays in portrait. It no longer serves my purpose for this reason.

**Developer response:** Thanks for using SpectrumView and for the review. We are really sorry for the inconvenience. Please send us an email at techsupport@oxfordwaveresearch.com and let us know more about your problem in order to help you better.

### 2/5 — Limited spectrum bandwidth

*2025-01-12*

The app only operates to 8khz I was expecting to see the upper frequencies nearer 20khz plus

**Developer response:** Thank you for the review and the feedback. But no, it doesn’t only operate to 8 kHz. If you go into settings and set audio sample rate to 48 kHz, you will be able to view frequencies up to 24 kHz. Please feel free to send an email to techsupport@oxfordwaveresearch.com if you need further help.

### 2/5 — Graph only goes to 8k

*2017-05-21*

Seriously

### 2/5 — Zu Teuer....

*2015-05-07*

Die Idee ist gut, aber 20 - 1000 Hz Fehlen.

### 2/5 — Bug hasn't been fixed for over 8 months

*2014-06-08*

If you have an iPad mini retina (and perhaps other devices as well?) the screen color on this app will be red, not as the blue pictured in all the screen shots. This makes it very difficult to discern the spectrum readout as the colors are too similar to the background.  When I contacted the makers of the app they said they were aware of the problem and working on it.  

That was 8 months ago.  No fix yet. Frustrating. 2 stars from me until this changes.

### 2/5 — This version has lots of major bugs

*2013-11-15*

- The colors are inverted in the spectrogram...!
- The landscape mode doesn't work properly; no data are displayed.
- Can't rename recording files.
- App always goes back to default settings after reopening.

What happened???

## Most praised reviews (10 highest-rated)

### 5/5 — Le meilleur

*2023-12-14, version 2.4.1*

Simple, efficace, rien à dire

### 5/5 — Great app, heaps of features.

*2023-08-19*

Has heaps of features, and works well. The web file transfer is great for images and csv data and the tap to freeze peaks in the Freq Analyser view is a nice addition. Has a really good help section for those wanting more information.

Note for the devs: great app, so im being picky here. It would be handy if the fade-outs on the tap label could be toggled, or if the csv data from the web file access could match the analysis resolution settings.

**Developer response:** Thanks for the great feedback Sammy. We are very happy to hear that you enjoy using SpectrumView. I let dev know about your feedback for their review and consideration for future builds.

### 5/5 — 高機能・高性能

*2019-05-04*

お勧めです。

### 5/5 — It’s the best spectrum app.

*2019-01-29*

This is my favorite frequency analysis app. Incredibly useful and insightful. You can plug your music in or use the mic. A total pleasure to use on drugs. Sometimes it clips when I run my own tracks on it though that’s pretty minor.

### 5/5 — Geniales FFT Werkzeug für die Entwicklung

*2018-07-23*

Nutze diese App beruflich in der Fahrzeugentwicklung. Die App dient zur schnellen und unkomplizierten Analyse von Störgeräuschen. Es werden Ergebnisse geliefert, welche sonst nur durch aufwändige und teure spezial Messtechnik zu bekommen sind.

### 5/5 — Gutes Tool

*2018-07-19*

Benutze diese App schon seit Jahren. Macht was es soll und ist ohne Schnickschnack trotzdem kann man aber wichtige Einstellungen vornehmen.

### 5/5 — Great app, and glad to give the author some money

*2018-01-24*

The original, free SpectrumView was an eye-opener about the way a device like the iPhone could change the landscape of tools:  quite unexpectedly, and without spending a cent, I suddenly had in my hand a fair equivalent of a kilo-buck spectrum analyzer; a tool I’d needed from time-to-time over the years, but “knew” I’d never own, or even have access to.

It’s been great that the author(s) have continued to support the tool over the years, and, at some stage, even began extending it. I’m glad to have a number of those extensions, and, in this “Plus” version, to obtain them without the hassle of in-app purchases. Also, after so many years, I’m happy to put some money in the author’s pocket for all that work.

(As to the reviewer who stated that the app has an 8 kHz frequency limit: go to settings and pick an audio sampling rate twice that of the maximum frequency of interest; even my iPhone 5s has no problem reaching 24 kHz. Whether the iPhone microphone is responsive to such frequencies, and equally responsive across whatever frequency range it does handle, is another matter, but that’s what external mics are for.)

### 5/5 — great app

*2014-12-18, version 1.2*

i've been using Spectrograph for a while now. this is a great tool for "seeing" sound. i highly recommend Spectrograph.

### 5/5 — Must Have App

*2014-12-01*

I have this app on both iPhone 6+ and iPad. I use it all the time when teaching audio fundamentals. Wouldn't want to be without it. Well done OWR, another great product.

### 5/5 — Полезная штука

*2014-03-11*

Пользуюсь чтобы на строить музыкальные инструменты

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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 2026-09-03.*