# Audio Spectrum Analyzer Pro — user reviews > 183 indexed App Store user reviews of Audio Spectrum Analyzer Pro by Vlad Polyanskiy, rated 4.40/5 from 238 ratings. - Source: https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews - App overview in markdown: https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806.md - Rating breakdown: 5★ 162 · 4★ 41 · 3★ 11 · 2★ 8 · 1★ 16 ## What do users think of Audio Spectrum Analyzer Pro? Overall sentiment: mixed **Pros** - 👍 Intuitive and easy-to-use interface - 💰 Completely free with no ads - 🎯 Accurate frequency and spectrum analysis - 📊 Multiple visualization modes (FFT, spectrograph, bar display) - 🔧 Professional-grade audio measurement tool - 🎵 Identifies musical notes and frequencies - ⚡ Responsive and real-time analysis - 🛠️ Useful for sound engineering and audio setup - 📱 Works well on both iPhone and iPad **Cons** - 💸 Aggressive subscription/paywall nags - 🔄 Frequent iOS compatibility issues after updates - 📉 Features moved behind paywall in recent updates - 🐛 App crashes on startup (especially iOS 16/26) - ⚠️ Misleading free trial that requires payment - 🔐 Excessive permissions requests (photo access) - 🎚️ Limited microphone sensitivity controls - 📊 Graph obscured by notch/dynamic island - 🔊 Mutes device speaker volume when running - ⏱️ Slow performance on some devices **Commonly reported bugs** - App crashes on iOS 16 and iOS 26 launches - FFT resolution not working after iOS updates - Graph display freezes or becomes unresponsive - Spectrograph mode too slow on newer iPhones - Frequency alignment issues with dynamic display - App won't uninstall properly - Malware warnings appearing - Help links and support pages broken/dead - Incorrect dB level readings (off by ~20dB) - Recording functions non-functional - Half black screen in certain orientations **Most requested features** - Audio file upload capability - White noise/test signal generator - Microphone calibration file support - Recording functionality with timestamp - Multiple frequency cursors for comparison - Ability to compare before/after curves - Adjustable dB level zoom/scaling - Saved settings and personalizations - Audio Unit (AUV3) plugin support - Peak hold reset button - Time-domain recording in spectrograph mode ## Newest reviews (15 of 183) ### 4/5 — It works again! *2025-09-26* Yay! A few weeks after the iOS 26 release, this app works again. ### 3/5 — Doesn’t work on iOS 26 *2025-09-24, version 3.0.2* Doesn’t work on iOS 26 ### 3/5 — App crash in ios26 *2025-09-22* The app is constantly crashing with new update of ios26 ### 2/5 — IOS26更新后打不开 *2025-09-22* 太坑了，希望能够尽快解决 ### 4/5 — ios 26 dùng kg dc *2025-09-19, version 3.0.2* ios 26 dùng kg dc ### 3/5 — Not working on iOS 26. *2025-09-12* It was absolutely perfect until I upgraded to the iOS 26 Public Beta. I absolutely loved this app. Really unfortunate that I am unable to use it further. ### 2/5 — The app used to work *2025-03-25* The app was great before it became unusable. One of my favorite “features” was using the bottom mic like a directional microphone to pin point hums or beeps around me. It had plenty of graphs to choose from even in the free tier. Now when I open the app the graph won’t even show up. This happened after I reinstalled the app due to offloading and since then it hasn’t worked. ### 1/5 — Was great *2025-03-19* This app was great until Logarithmic view became a pro feature without warning, now the app is useless. I would not recommend downloading ### 3/5 — Audio input *2025-02-15* I would really love to use this app but I can’t because it only accepts mic input. I’d like to have my own audio output be detected and used as audio input. Or at least be able to upload files! ### 1/5 — Unknown eSIM *2025-02-10, version 3.0.2* App tried to add unknown eSIM to my phone. ### 3/5 — Deleted *2025-01-19* Opened this today [19-Jan-2025] and was confronted by a nag-screen offering expensive upgrades. … Sorry but I am not sufficiently impressed to take-up either of your offers. ### 1/5 — Avoid at all costs. *2024-11-22* A total fraud. The app wouldn’t install on my IOS. Nevertheless, I was charged for it, at the Premium (highest) cost. Avoid this seller. ### 2/5 — All the features are now locked behind a paywall *2024-09-25* This used to be the best spectrum analyzer but now any of the features you need to make this functional are all behind a pricey paywall. They nerfed its functionality to charge for the features that were already there. ### 4/5 — Preferred RTA *2024-09-17, version 3.0.2* As a media technician, I prefer this RTA over an inbuilt mixer’s. ### 1/5 — Pay to use *2024-03-05, version 3.0.2* Do not install this app if you want to do something. There is other apps that offer same functionality but don’t want to steal your money ## Most critical reviews (10 lowest-rated) ### 1/5 — Nag *2026-02-22, version 3.1* Can’t even try it for one session without sub nags every three minutes ### 1/5 — Scam *2025-09-22* Vor 2 Monaten gekauft, jetzt geht nix mehr, App stürzt ab beim öffnen. Danke vielmals ! ### 1/5 — Not free anymore and Stopped working *2025-09-20, version 3.0.2* It was a great app and now it’s not working unless you subscribe! It’s not worth the price since there’s free apps the work similarly. ### 1/5 — Crashes on launch *2025-09-18, version 3.0.2* App no longer works, instant crash when launch, likely due to it not being updated ### 1/5 — Вылетает в iOS 26 *2025-09-18* Вылетает при попытке запуска. ### 1/5 — Jetzt Zwangsabo mit Nachfolger *2025-09-11* Ich finde es unverschämt, dass Pro Nutzer nicht mit Update für IOS 26 versorgt werden. Anstatt dessen stellt man eine „neue“ App „Dezibel Pro“ ein - dieses Mal mit Abozwang! Das ist Abzocke vom Feinsten! Nicht mit mir! ### 1/5 — Useless demo *2025-09-09* Demo app that asks for money before even letting you try it ### 1/5 — Nunca funcionó *2025-08-05, version 3.0.2* Lo instale en mi iPad y nunca logré hacerlo funcionar ### 1/5 — Требует деньги *2025-05-05* Бесплатный функционал бесполезен!!! ### 1/5 — There is a hidden cost to this app *2025-05-04* After you download this, for you to use it there are pricing options that you MUST sign up with to be able to use this app. Or else you cannot go any further. 100% UNINSTALLING. ## Most praised reviews (10 highest-rated) ### 5/5 — iOS 26 crash fixed *2025-09-26* Thanks ### 5/5 — IOS 26 Please <3 *2025-09-22* Love the app, been using it for years. However, doesn’t work on IOS 26 yet (crashes on start up). Can’t wait to be able to use it again ;) ### 5/5 — Герцы *2024-12-23* Очень точно измеряет Герцы ### 5/5 — поиск писка *2024-06-20* на кухне стоял писк после отключения света, а откуда — не понятно, приложение помогло по графику определить наличие писка ### 5/5 — Goodgood *2024-05-01, version 3.0.2* Ung dung tốt nhất hiểu quá nhất toi tung trai nghiệm ### 5/5 — 好用 *2023-02-12* 非常非常棒 ### 5/5 — One of the most useful tool on iPhone! *2023-01-24, version 3.0* I love this app!!! 😎👍👍 The FFT is one of the most useful tools for us engineer-musicians !!!! *** I’m a retired circuit design/test/prod EE, used HP spectrum analyzers my entire career. —> I’m also a lifelong musician & loudspeaker cabinet designer-build & test. So I know how to use this tool —> I used it today to find & measure, & show the designers of my house HAC, the peak Hz of an obnoxious tone 😡resonating from the blower they installed. ### 5/5 — Unglaublich *2022-12-16* Diese App lässt keine Wünsche offen. Und das noch gratis. Mir fehlen die Worte. Kenne keine kommerzielle App, die das kann. Und dann noch geschenkt. Danke! ### 5/5 — Excelente *2022-09-12* Era exatamente o aplicativo que eu precisava e ainda é de graça. ### 5/5 — Fantastic app. Best out there. *2022-09-02, version 2.0.1* Really amazing app! Love the features! Thank you! --- *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 2026-09-09.*