# Audio spectrum analyzer EQ Rta — user reviews > 80 indexed App Store user reviews of Audio spectrum analyzer EQ Rta by Marina Polyanskaya, rated 4.50/5 from 245 ratings. - Source: https://appshunter.io/ios/app/audio-spectrum-analyzer-eq-rta/id1122398778/reviews - App overview in markdown: https://appshunter.io/ios/app/audio-spectrum-analyzer-eq-rta/id1122398778.md - Rating breakdown: 5★ 192 · 4★ 27 · 3★ 8 · 2★ 3 · 1★ 15 ## What do users think of Audio spectrum analyzer EQ Rta? Overall sentiment: negative **Pros** - 👍 Well-designed interface - 👍 Useful for musicians - 👍 Good for casual use - 👍 Accurate for basic analysis - 👍 Replaces expensive equipment - 👍 Clear FFT display - 👍 Real-time analysis - 👍 Good value for price **Cons** - 🐛 Does not work on newer iOS - 🐛 Freezes frequently - 🐛 Unresponsive graphs - 🐛 No instructions - 🐛 Help section shows errors - 🐛 Paid but not working - 🐛 Spectrum not showing changes - 🐛 Bars get stuck - 🐛 Inaccurate readings - 🐛 Random graph responses - 🐛 Delayed display - 🐛 Not enough bands - 🐛 Lacks calibration - 🐛 No subsonic range - 🐛 No detailed bass analysis - 🐛 No detailed treble analysis - 🐛 Slow reaction time - 🐛 No zoom function - 🐛 No external microphone calibration - 🐛 No AUv3 support - 🐛 No peak hold reset - 🐛 No weighting filters for SPL - 🐛 No image export - 🐛 Annoying pop-ups - 🐛 No differentiation below 200Hz - 🐛 Inconsistent dB readings - 🐛 Error in help section encoding **Commonly reported bugs** - Does not work with iPad Pro M4 and iOS 18 - Freezes all the time on newer iOS versions - Does not respond correctly on newer iOS - Does not work on iPhone 11 - HELP in app doesn't work, showing ERROR - Not working on iPhone 13 Pro Max - Froze up, did not work - On iOS 16, errors, almost not working - Does not work on iPhone 14 iOS 17.1.1 - Does not appear to show spectral changes - Bars sometimes move, sometimes don't, get stuck - Does not work on iPad - Not working smoothly on iOS 16.3 - Display not timely - Doesn't work on iPhone 14Pro, latest iOS - Works on older iPad, not on iPhone - Shows only nonsense and freezes constantly - Not usable after iOS 16 update - Broken as of January 2023 - Sensitivity very low or very slow on iOS 16.2 - App crashes constantly at granular sampling settings - Graphs unresponsive at lower sampling rates - Spectrograph doesn't work anymore - Whole app is useless on iPhone 14 - No input even with microphone access enabled on iOS 16 - Not working in iPhone 13 - App works only with delayed fake data on iOS 16.x - Don't work on iPhone 12 Pro Max, iPhone 14 pro max, ios15 and ios16 - Erroneous readings, unstable, inaccurate - Does not open on iOS 10 on an iPhone 6 - No information below 70 hertz - Cannot select a reading below 50 Hz - Same problem at the upper end of the audible range - Measurement results do not match the standard - Very slow reaction - No differentiation below 200Hz - Decibel meter shows 40dB in silence in Octave RTA, but 20dB in FFT Plot with same A curve - Help section has incorrect encoding, text in hieroglyphs **Most requested features** - Fix for newer iOS versions - Add instructions - Fix help section - Add refund option - Add zoom function - Add external microphone level data correction - Add AUv3 support - Add peak hold release/reset button - Add switchable weighting filters (dB C, dB Z) - Add ability to capture & export images - Prevent phone from turning off while using app - Add quarter tones - Add manual calibration setting - Add time-based filter - Add more bands for detailed info - Add calibration function - Add subsonic range display - Add detailed bass and treble analysis - Add scale adjustment for vertical and horizontal axes - Improve reaction time - Add peak hold reset button - Add dB C and dB Z weighting filters - Add image export functionality ## Newest reviews (18 of 80) ### 4/5 — I can't use *2025-03-01* please update, thanks ### 3/5 — Bp *2024-02-10* Not working on iPhone 13 Pro max ### 1/5 — Does not appear to show spectral changes *2023-11-13* Spectrum does not show changes in equalizer settings when playing white noise. In short, it does not appear to work. But it does show overall volume changes. ### 1/5 — Does not work on iPad *2023-09-02* I just purchased this, and it does not work on my iPad. The bars sometimes move, and sometimes they don’t. And when they move, they go up, but they do not fall back down. No, I am not talking about the peak hold feature. I mean the dynamic bars that are supposed to move up and down live with the sound go up, get stuck, and won’t go up again or down again. I would like a refund please. ### 1/5 — Läuft nicht so richtig *2023-07-18* Läuft unter IOS 16.3 nicht mehr rund.Habe so manche Einstellung schon durchprobiert. Anzeige(Ausschläge) nicht zeitnah. ### 1/5 — Doesn't work on iPhone 14Pro, latest iOS *2023-05-17, version 2.2.1* Works on older iPad, not on iPhone.... ### 1/5 — Useless *2023-02-17, version 2.2.1* It’s great if you like to watch the graphs respond randomly to sounds. However, it provides no actual or helpful sound analysis. ### 1/5 — Zeigt nur Unsinn an und friert ständig ein, Hilfeseite bleibt auch leer, 4,99€ für nix *2023-01-23* Funktioniert nicht ### 1/5 — iOS 16+ Achtung *2023-01-21* Bitte erneuern auf iOS 16!! Nicht mehr nutzbar nach Update, nicht die freie Software und auch nicht die Bezahlte. Schade!!! ### 1/5 — Broken as of January 2023 *2023-01-19* iPhone 13 Pro iOS 16.2 This was an excellent app with great resolution in it’s RTA. Sadly now broken and non-functional. :( ### 4/5 — Upgrade needed *2023-01-15* Worked well for a long time. I went from IOS 15.4 to 16.2 and the app broke. The sensitivity seems very low or very slow now. I used to watch live as various frequencies hit peaks. Cannot do that now. ### 1/5 — Excellent app iOS 16 appears to have killed it. *2023-01-11* I purchased this app ages ago and use it often to find high frequency buzzing from electronics around the house. The interface is clean and responsive. However post updating my phone the app crashes constantly when running at the more granular sampling settings and when running at lower sampling rates the graphs are unresponsive. Unless the developer releases an update to fix this issue do not download or use this app. ### 1/5 — Used to be good *2023-01-05* This was amazing but functionality has suffered due to lack of updates. Spectrograph doesn’t work anymore and the whole app is useless on iPhone 14. Shame. ### 3/5 — Have loved this app *2022-12-24* But seems to have broken in iOS 16. No input even with microphone access enabled. ### 1/5 — Not working in iPhone13 *2022-12-05* Not working in iPhone13 ### 1/5 — iOS 16.x/iPadOS 16.x *2022-11-05* Die App funktioniert unter iOS 16.x auf diversen iPhone leider nur noch mit verzögerten Fakedaten. Unter iPadOS 16.x ist weiterhin alles ok. ### 3/5 — Older *2022-10-22* Don’t work on iPhone 12 Pro Max , iPhone 14 pro max , ios15 and ios16 Please upgrade , I love it ### 1/5 — Update your app for iOS 16 *2022-09-24, version 2.2.1* Update your app for iOS 16! ## Most critical reviews (10 lowest-rated) ### 1/5 — 骗子 *2025-09-19* ios26购买安装后不能用 ### 1/5 — No longer working… *2025-05-14, version 2.2.1* Was a good app until iPad was upgraded. Does not work with iPad Pro M4 and iOS 18. ### 1/5 — Used to Work. Cannot Recommend *2025-04-03* Seems like newer IOS versions have rendered this app useless. For some reason it does not respond correctly and freezes all the tome. Sadly, look elsewhere for a FFT analyzer. This app used to be fantastic. Please fix this app! ### 1/5 — Not recommended *2025-03-14, version 2.2.1* No instructions , confusion ### 1/5 — Doesn’t work for my Iphone 11 *2024-07-05, version 2.2.1* Paid but im not happy. It may be my phone but i would like a refund. I dont need access to this app if it doesn’t work for me. Thanks. ### 1/5 — No help for this app *2024-04-21* The HELP in app doesn’t work, showing ERROR on screen. No explanation what is what and how it works. Waist of money… ### 1/5 — 엉터리 앱임 *2024-03-27* 완전 엉터리 앱임 낚이지 마세요. ### 1/5 — Essentially did not work for me at all. *2024-01-27* Did not work. Froze up. Even when it looked like it was working, did not change even with radical changes to my eq. ### 1/5 — Đã trả phí để mua phềm mềm nhưng trên ios 16 lỗi gần như không hoạt động *2023-12-05, version 2.2.1* Mong nhà phát triển ra phiên bản cho ios mới ### 1/5 — iphone 14 *2023-12-01, version 2.2.1* Does not work on iPhone 14 iOS 17.1.1 it did work on an iphone 7 with older iOS Not sure if the problem is the iphone model or the software version ## Most praised reviews (10 highest-rated) ### 5/5 — Works great *2022-09-24, version 2.2.1* I’m not expert but it works great for my needs. ### 5/5 — 👍🏻 *2021-10-05* Love it. If we could have an option like "prevent phone from turning off while using the app" it would be PERFECT. ### 5/5 — Taruntsov *2019-06-23* Super gut. Mann versteht alles. Sehr nützlich. ### 5/5 — Super 👍👍 *2018-09-10* Ich habe viele dieser Apps ausprobiert und bleibe hierbei. Eine sehr vielseitige und übersichtliche App mit vielen Funktionen. ### 5/5 — Detailed Bass and treble analysis is lacking *2017-09-01* Gives almost no information below 70 hertz. I am trying to decide whether I need a sub woofer and how much my speakers roll off below 70hz. It shows a straight response from 70 to zero which is wrong and you can't select a reading below 50. Has the same problem at the upper end of the audible range. Fine for mid range analysis I suppose but this usually not where the problems are in audio systems. ### 5/5 — I am really impressed *2017-04-23* I've used bar graph audio analyzers on the iPhone and the one in this app is as good as any I've seen, but the real winning feature is the FFT display. It allows ready identification of the exact frequencies that are the components of the sound you are hearing. Highly recommended. ### 5/5 — Really good *2017-04-05* As a musician, it helps me find any annoying freqs. I tested this against a real audio spectrum analyzer. It's so close to the grass speck, I was totally blown away. So keep on developing this apps. I support you guys ### 5/5 — Fun and useful *2017-04-05* This is fun to play with. I'm not going to tune my piano or calibrate my audiometer with it, but it's useful to see what the main frequencies are in everyday sounds and noises. Its also a great conversation starter when you start whistling into your phone ### 5/5 — Love this app *2017-03-31, version 1.0.1* Fantastic app ### 5/5 — Works great on iOS 10.2.1! *2017-03-25* It is very simple to use, stable to run, the sound level is only several dB off from a commercial sound meter. Wish to add a manual calibration setting, and a time based filter. --- *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 2026-08-25.*