Best Octave Rta Apps

211+ iOS apps curated and reviewed

4.3 avg rating
13 free apps
Updated May 2026

Out of 211+ octave rta apps on iOS, 13 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Octave Rta

Octave RTA#1

Octave RTA by ONYX 3

Real Time Sound Analyzer
Editor's Choice
🎵 Music
4.4😐(150 ratings)
$9.99
Octave RTA screenshot 1
Octave RTA screenshot 2

This real-time audio analysis app provides precision measurement and visualization for sound. It's designed for musicians and recording engineers, but useful for anyone interested in sound, especially for room or speaker tuning.

What We Love

  • 🚀 Accurate and precise measurements
  • 👍 User-friendly interface
  • 💡 Great tool for sound engineers
  • 💰 Good value for money

Room to Improve

  • 🐛 Screen flashing/blinking issue
  • 🐛 Gain adjustment not working
  • 🐛 Microphone permission issues
Smaart RTA#2

Smaart RTA by Rational Acoustics LLC

RTA, Spectrograph, SPL Meter
Strong Contender
🎵 Music
4.8(195 ratings)
FreeIn-App Purchases
Smaart RTA screenshot 1
Smaart RTA screenshot 2
Smaart RTA screenshot 3
Smaart RTA screenshot 4
Smaart RTA screenshot 5
Smaart RTA screenshot 6

Analyze audio in real time with professional-grade tools. Visualize frequency content, manage feedback, and monitor sound pressure levels with precision and ease, all from your mobile device.

AUDIIO - RTA Analyzer#3

AUDIIO - RTA Analyzer by BetaMatters Limited

Spectrogram, RTA, dB Analyzer
Worth Considering
🎵 Music
4.3(84 ratings)
FreeAdsIn-App Purchases
AUDIIO - RTA Analyzer screenshot 1
AUDIIO - RTA Analyzer screenshot 2
AUDIIO - RTA Analyzer screenshot 3
AUDIIO - RTA Analyzer screenshot 4

Visualize audio in real-time with various data graphs like RTA Bar, FFT, and Spectrogram. Offers full octave and 1/3 octave analysis with linear or logarithmic scales. Displays peak and current dB data in a sleek, functional interface.

More Octave Rta apps to explore

4
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Sound frequency, decibel meter
Free

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.

Octave Band Real-Time AnalyzerFFT Plot - Fast Fourier TransformIntegrated Sound Level Meter (dB-A)
🎵 Music
(3K)
free with in-app purchases
5
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Frequency Spectrum Analyzer
Free

This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.

Precise sound pressure level measurementFrequency spectrum analysis (FFT, BAR graphs)Historical data recording and export
🔧 Utilities
(156K)
free with in-app purchases
6
Audio / Spectrum Analyzer
Audio / Spectrum Analyzer
Audio / Spectrum Analyzer
RTA (FFT / Octave Analysis)
Free
$10.99 | 100% OFF

This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.

Simultaneous waveform and spectrum displayConfigurable display layoutsSelectable FFT size and averaging
🎵 Music
(129)
free with in-app purchases
7
Decibel : dB sound level meter
Decibel : dB sound level meter
Decibel : dB sound level meter
Audio noise Spectrum Analyzer
Free

Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.

Real-time decibel (dB) sound level monitoringIntegrated Spectrum Analyzer (FFT, spectrogram)Sleep tracking with sound recognition
🔧 Utilities
(36K)
freemium
8
RTA Audio
RTA Audio
RTA Audio
by New Ball s.r.o.
Free

Analyze audio in real-time with detailed frequency spectrum and waveform visualizations. Record and export your audio analysis results, including spectrograms and frequency tables, for sharing or archiving.

Real-time audio analysis (FFT)Recording and offline processingSpectrogram and waveform visualization
🎵 Music
(31)
free with in-app purchases
9
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Sound Frequency Analysis
Free

Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

Octave Band Real Time AnalyzerFFT Plot (Fast Fourier Transform)Sound level meter (dB meter)
🎵 Music
(236)
free with in-app purchases
10
Spectrum Analyzer RTA
Spectrum Analyzer RTA
Spectrum Analyzer RTA
Sound Frequency Analyzer
$19.99

This real-time audio analysis app provides precision measurement and visualization for sound frequencies. It's designed for musicians and recording engineers, offering tools for room and speaker tuning, and can be used with built-in or external microphones.

Octave Band Real Time AnalyzerFFT PlotSpectrograph module
🎵 Music
(67)
paid
11
Audio spectrum analyzer EQ Rta
Audio spectrum analyzer EQ Rta
Audio spectrum analyzer EQ Rta
Sound frequency, decibel meter
$3.99

This app provides real-time audio analysis and visualization for sound frequency and decibel levels. It's designed for precise audio measurement, suitable for both hobbyists and professionals tuning rooms or speakers.

Octave Band Real-Time AnalyzerFFT PlotSmooth HD Graphics
📊 Productivity
(245)
free
12
mimigar
mimigar
mimigar
by Evixar Inc.
Free
🎵 Music
(0)
13
NIOSH Sound Level Meter
NIOSH Sound Level Meter
NIOSH Sound Level Meter
by EA LAB d.o.o.
Free

This free app measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and guidance on hearing protection and noise prevention.

Sound level measurementNoise dosimetryHearing hazard information
🔧 Utilities
(16K)
free
14
RTA
RTA
RTA
Real Time Analyzer
$4.99

Analyze audio frequencies, test speakers, and tune rooms with this professional-grade acoustical analysis tool. It offers octave and 1/3 octave modes, peak hold, and averaging, with automatic microphone compensation for accurate results.

Real-time acoustical analysisOctave and 1/3 Octave modesPeak Hold and Average modes
🎵 Music
(24)
free with in-app purchases
15
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
RTA, Acoustics Measurement SPL
$19.99

This professional audio analysis app offers a comprehensive suite of tools for acoustic measurements, including SPL, RTA, and FFT. It calibrates device microphones for accurate results and allows for the addition of powerful optional modules for advanced analysis.

SPL Meter with A/C weightingReal Time Analyzer (RTA)Fast Fourier Transform (FFT) analysis
🎵 Music
(5K)
free with in-app purchases
16
FFT Plot
FFT Plot
FFT Plot
Sound Frequency Analyzer RTA
$9.99

This real-time audio analysis app provides precision sound measurement and visualization. It's ideal for detecting sound issues, room tuning, and speaker calibration, offering detailed frequency analysis for musicians and audio professionals.

Real-time audio analysisFrequency detectionAveraging options
🎵 Music
(87)
free
17
Tuner Lite by Piascore
Tuner Lite by Piascore
Tuner Lite by Piascore
The Ultimate Chromatic Tuner
Free

This app provides accurate chromatic tuning for a wide range of musical instruments using your device's microphone. It features a responsive needle meter, pitch pipe, and automatic calibration for precise tuning. An optional full version offers advanced features.

Chromatic instrument tuningBuilt-in microphone supportNeedle meter display
🎵 Music
(9.5K)
free with in-app purchases
18
Madona: Run MATLAB/Octave code
Madona: Run MATLAB/Octave code
Madona: Run MATLAB/Octave code
Compile MATLAB and Octave code
Free

Write and execute MATLAB and Octave code directly on your mobile device. Ideal for learning and testing code snippets with a custom keyboard and advanced editor. Supports plotting and graphing with detailed error output.

Compile and run MATLAB/Octave codeSupports plotting and graphingView program output or detailed error
📚 Education
(15)
free with in-app purchases
19
DM-RTA
DM-RTA
DM-RTA
by AudioControl
Free

This portable signal analyzer offers five essential tools for audio system calibration. It generates test tones and provides real-time analysis of sound spectrum, voltage, polarity, and signal waves. With a built-in battery, it's ideal for on-the-go system tuning.

Real-time analyzer (RTA)VoltmeterPolarity checker
🔧 Utilities
(11)
free
20
Octave Band Real Time Frequency Analyzer and Sound Level Meter
Octave Band Real Time Frequency Analyzer and Sound Level Meter
Octave Band Real Time Frequency Analyzer and Sound Level Meter
by Marina Polyanskaya
$1.99

This app provides real-time audio analysis for room and speaker tuning. It offers precision measurement and visualization of sound frequencies, suitable for both enthusiasts and professionals. Advanced features are included for accurate spectrum analysis.

Octave Band Real-Time AnalyzerIntegrated Sound Level MeterPrecision audio measurement
📊 Productivity
(4)
paid