Comparison

Audio Spectrum Analyzer dB RTA vs TB Spectrogram

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Audio Spectrum Analyzer dB RTA

Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.

Highlights
  • Octave Band Real-Time Analyzer
  • FFT Plot - Fast Fourier Transform
  • Integrated Sound Level Meter (dB-A)
  • Multispectral Harmonic Analyzer
  • Hold Max and Min Peaks
  • Various Window Functions
Features
Read full 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 - https://www.iubenda.com/privacy-policy/42622625 Terms of Use https://www.iubenda.com/terms-and-conditions/42622625

About

TB Spectrogram

This app provides real-time audio analysis with a spectrogram, spectrum analyzer, and goniometer. It can be used as a standalone application or as an AUv3 plugin within compatible music production hosts. Visualize your audio in detail with adjustable settings and multiple display options.

Highlights
  • Real-time spectrogram and spectrum analysis
  • Goniometer for stereo signal analysis
  • AUv3 plugin compatibility
  • Adjustable frequency and time resolution
  • Customizable color themes
  • On-screen piano keyboard mapping
Features
Read full description

ToneBoosters Spectrogram shows a real-time spectrogram, spectrum, and goniometer AUv3 plugin! We have taken the stunning visual spectrum analyzer features from our latest and greatest Equalizer Pro plugin and released it as a separate app / AUv3 plugin! The ToneBoosters Spectrogram app captures the microphone input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters Spectrogram will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - Fully resizable (as AUv3 plugin) - Color themes for the user interface - Max screen support in Garageband - Adjustable color themes for UI and for spectrogram independently - Adjustable dynamic range - Adjustable frequency resolution - Adjustable time resolution - Adjustable spectral slope - Spectrogram AGC and dimming support - Show spectrogram and spectrum analyzer as overlay or individually - Spectrum analyzer also supports peak hold - Split-band goniometer for stereo signal analysis (correlation, left/right balance in one or two bands!) - On-screen piano keyboard to map spectrum analyzer to piano notes - Optimised for iPad and compatible with iPhone and iPod Touch What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

Screenshots

Audio Spectrum Analyzer dB RTA3 screens
TB Spectrogram2 screens

Verdict

The call

The clearest difference is in-app purchases: TB Spectrogram at none against Audio Spectrum Analyzer dB RTA's 2. TB Spectrogram also leads on review sentiment (71% vs 44%) and update cadence (every 3 weeks vs every 5 months). Audio Spectrum Analyzer dB RTA's advantage is ratings volume (3K vs 50). On price, rating, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Audio Spectrum Analyzer dB RTA sells 2 in-app purchases, starting at $1.99 per month. TB Spectrogram asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Audio Spectrum Analyzer dB RTA against 4.4 for TB Spectrogram. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer dB RTA has 3K ratings behind it against 50, so its average is the more settled of the two. Written reviews are what separate them: 44% of Audio Spectrum Analyzer dB RTA's written reviews are positive against 71% of TB Spectrogram's.

UpkeepUpdate frequency

Audio Spectrum Analyzer dB RTA ships an update every 5 months, TB Spectrogram every 3 weeks. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

Scorecard6 real differences · 4 level
Audio Spectrum Analyzer dB RTA versus TB Spectrogram: the parameters behind the verdict, then further details
ParameterAudio Spectrum Analyzer dB RTATB Spectrogram
PriceFreeFree
Rating4.5 (3K ratings) — better4.4 (50 ratings)
Positive reviews43.6% of reviews71.0% of reviews — better
Number of ratings3K — better50
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1513.0 — better
Further details — not scored
Size24 MB15 MB
Age rating4+4+
DeveloperMarina PolyanskayaToneBoosters

Customer experience

Audio Spectrum Analyzer dB RTA

All ratings3,042 ratings
Positive87.7%
Neutral4.1%
Negative8.2%
Written reviews484 reviews
Positive43.6%
Neutral7.4%
Negative49.0%

TB Spectrogram

All ratings50 ratings
Positive86.0%
Neutral2.0%
Negative12.0%
Written reviews31 reviews
Positive71.0%
Neutral6.5%
Negative22.6%

Bugs and requests

Audio Spectrum Analyzer dB RTA

Reported bugs

3 issues
  • Freezing and crashing on certain devices
  • Incorrect frequency readings in Octave RTA mode
  • Inability to switch between microphone sources

Requested features

4 requests
  • External microphone support
  • Ability to save and compare measurement results
  • More detailed instructions and tutorials
  • Vertical orientation option

TB Spectrogram

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Audio Spectrum Analyzer dB RTA

Subscriptions1
  • Premium Access3 Days trial$1.991 Month
One-time1
  • Spectrum Analyzer Pro$7.99
None

TB Spectrogram

No in-app purchases

Questions

Is Audio Spectrum Analyzer dB RTA free?
Audio Spectrum Analyzer dB RTA is free to download, with in-app purchases available.
Is TB Spectrogram free?
TB Spectrogram is free to download, with no in-app purchases.
Which has better reviews, Audio Spectrum Analyzer dB RTA or TB Spectrogram?
Audio Spectrum Analyzer dB RTA is rated higher. Audio Spectrum Analyzer dB RTA averages 4.5 out of 5 from 3K ratings, while TB Spectrogram averages 4.4 from 50 ratings.
Do Audio Spectrum Analyzer dB RTA or TB Spectrogram have ads?
Neither Audio Spectrum Analyzer dB RTA nor TB Spectrogram shows ads.
Which is updated more often, Audio Spectrum Analyzer dB RTA or TB Spectrogram?
Audio Spectrum Analyzer dB RTA ships an update every 5 months, and TB Spectrogram every 3 weeks. Most recently, Audio Spectrum Analyzer dB RTA was updated on September 22, 2026 and TB Spectrogram on September 14, 2026.

Other comparisons