---
title: "Audio Spectrum Analyzer dB RTA - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Spectrum Analyzer is full of fantastic advanced features you won’t find elsewhere easily!  This app offers a fast and accurate spectrum analysis suitable for both amateur hi-fi enthusiasts and profess"
---

# Audio Spectrum Analyzer dB RTA — United States
> Sound frequency, decibel meter

![Audio Spectrum Analyzer dB RTA App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/7f/44/9b/7f449bb9-f923-0b26-d4fd-d23d891b4085/AppIcon-1x_U007emarketing-0-8-0-85-220-0.png/400x400bb.png)

**Developer:** [Marina Polyanskaya](https://apptail.io/developer/marina-polyanskaya-Bgi)
**Category:** Music
**Rating:** 4.5/5 (3,043 ratings)
**Price:** Free
**Bundle ID:** com.lspapps.SpectrumFree
**Store:** Apple App Store
**Country:** United States
**Version:** 2.3 (released 2025-09-29)
**Original Release:** 2017-09-28

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1281873790)
**AppTail Page:** [https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/united-states](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/united-states)

## Audio Spectrum Analyzer dB RTA Description
Spectrum Analyzer is full of fantastic advanced features you won’t find elsewhere easily!

This app offers a fast and accurate spectrum analysis suitable for both amateur hi-fi enthusiasts and professional A/V engineers. This incredibly precise, pro level tool is perfect for tuning your home cinema, car stereo, subwoofers, and more. Spectrum analyser gives insight into your sounds and deconstructs the audio spectrum, showing the levels of the various frequencies in your audio signal.
The built-in sound meter provides high-quality measurement results when measuring ambient noise levels in a multitude of real-life scenarios.

Features include-
● Octave Band Real-Time Analyzer 
● FFT Plot - Fast Fourier Transform
● Smooth HD Graphics
● Multispectral Harmonic Analyzer
● Integrated Sound Level Meter (dB-A weighted)

FFT Features
● FFT size from 256 to incredible 16384
● Hold Max and (unique feature) Min peaks
● Linear and Logarithm scales
● Various window functions: Rectangle, Hanning, Hamming, Tukey, Cosine, Lanczos, Blackman
● Max frequency live tracking
● Selected frequency live tracking
● Fullscreen mode

Octave RTA features
● Bars and unique spline plot modes
● Full, 1/3, 1/6 octave modes
● Hold max mode
● Selected bar tracking.

And much more...

Please feel free to contact us with any questions, problems or ideas via e-mail support@lspapps.com.

Privacy Policy - 
Terms of Use   

## Audio Spectrum Analyzer dB RTA Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/ee/ae/02/eeae02d9-8ad8-8b74-5f5f-d9874372e7ea/789c0511-4720-427c-aa62-0f2e2cac2a78_en1_new.png/2688x1242.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/ce/f0/1e/cef01ec4-ab5c-a524-3bd2-88c89b39a10d/7e3c26f7-e2a5-4300-954e-d7a1fe6297a2_en2.png/2688x1242.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/8f/9a/48/8f9a484d-ae41-0bb1-5cff-2699daab5812/f9d900ac-d5b4-4798-98cb-3c337f607049_en3.png/2688x1242.png)

## Audio Spectrum Analyzer dB RTA Rating Breakdown in United States
- 5 stars: 2,255 (74%)
- 4 stars: 414 (14%)
- 3 stars: 124 (4%)
- 2 stars: 51 (2%)
- 1 stars: 199 (7%)

## Audio Spectrum Analyzer dB RTA Reviews in United States

### ***-- "Good product but crashes on startup for iOS 26"
Appears to be unmaintained. Too bad as I found it useful.
-- StinkyLinus, 2025-09-24

### *---- "Not for the uninformed"
No guidelines in app, downloaded to make adjustments to my car stereo via the cars EQ settings and through my CarPlay settings. Immediately after the app opened the music coming through my car went completely flat, no explanations on how to use the app, half of the buttons I selected returned an error screen. Can only assume it’s been abandoned by devs or is only for people who know what they are doing already and have it as a third device so you can make tweaks while connected via CarPlay. This is really important in Subarus as non CarPlay music is muddy, tinny and overall terrible due to the OEM head unit. Hopefully I can find something else on the App Store but it was a pretty immediate uninstall
-- Overseer of Vault 106, 2025-01-30

### **--- "Refund"
It effects the case audio so I can’t use to tune it.  It’s been less than 10 minutes can I get a refund or fix my issue please
-- RLTL1968, 2025-01-20

### *---- "No longer functions."
Dead weight. Paid version. Used to work fine. Doesn’t function at all and crashes now.
-- Glendefiant, 2024-12-26

### *---- "Just crashes"
Used to function, but now just crashes.
-- jgonion, 2024-11-27

### *---- "My idea"
Could this audio spectrum analyzer ever be made into an 

AUV3 plugin
-- Lil Woodryc, 2024-10-10

### *---- "Didn’t work, zero response from multiple attempts to reach company, got refund from Apple"
When this was free it was great. Hadn’t used it in years, recently needed it again. Wasn’t working but now said buy full version for $7.99, figured that’s why it wasn’t working. Nope. Paid for it but it never worked. Used the in-app “help” feature to report it to the company several times. After multiple attempts I asked Apple for a refund. To bad.
-- The Baguette Killer, 2024-10-01

### ****- "Decent, but lacking."
There are several complaints I have after purchasing the app.  If you pause to get good look, the cursor no longer works, so I can’t get accurate frequency of db measurements.

Also, when paused, the log/linear scale switchers but the graph itself doesn’t.  It’s easy to loose track of the original mode, rendering the graph useless since it is static while the scales switch around it.

A number of functions simply don’t work.  I get an error when I click them.

Overall, I’m rather disappointed with the app, esp. since I paid for it.
-- Robv23, 2024-09-20

### *---- "Not accurate"
Tested response while using a tone generator; it did not identify any frequencies correctly. Most of the time it did not identify the presence of a frequency even though the volume was turned up. Other RTA apps were able to successfully complete this basic test.

Has not been updated in 3 years and the developer’s web site no longer exists.
-- -tmoa-, 2024-08-28

### *---- "Didn’t work and No help"
Literally did nothing. Went to “Help” to see operating instructions and there was nothing there. Glad I didn’t purchase it and cancelled my trial.
-- fordandrew, 2024-07-21

[View all Audio Spectrum Analyzer dB RTA reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Audio Spectrum Analyzer dB RTA In-App Purchases
| Item | Price |
|------|-------|
| Premium Access | $1.99 |
| Spectrum Analyzer Pro | $7.99 |

## Audio Spectrum Analyzer dB RTA Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Vietnam | Music | #213 |

## Audio Spectrum Analyzer dB RTA Discovered Keywords
- spectrum analyzer
- audio frequency analyzer
- sound frequency
- audiotools
- sound level analyzer pro
- sound spectrum pro
- mobile tools
- rta app
- octave rta
- rta audio

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## Audio Spectrum Analyzer dB RTA Available In
- [United States](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/united-states)
- [China](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/china)
- [Germany](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/germany)
- [Vietnam](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/vietnam)
- [Thailand](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/thailand)
- [Italy](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/italy)
- [France](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/france)
- [Canada](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/canada)
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- [Mexico](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/mexico)
- [Russia](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/russia)
- [Taiwan](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/taiwan)
- [United Kingdom](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/united-kingdom)
- [Spain](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/spain)
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- [Senegal](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/senegal)
- [Guyana](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/guyana)
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- [Uzbekistan](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/uzbekistan)
- [Grenada](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/grenada)
- [British Virgin Islands](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/british-virgin-islands)
- [Cambodia](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/cambodia)
- [Costa Rica](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/costa-rica)
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- [Bolivia](https://apptail.io/app/audio-spectrum-analyzer-db-rta-CmO/bolivia)

---

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