Spectrum Analyzer: Audio RTA
Frequency, FFT & Spectrogram
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
See sound in real time with Spectrum Analyzer: Audio RTA, a powerful audio analysis tool for visualizing frequencies, waveforms and spectral activity through your device’s microphone.
Whether you are tuning speakers, examining music, testing audio equipment, identifying troublesome frequencies or simply exploring the sounds around you, the app gives you a clear and responsive view of your audio signal.
REAL-TIME AUDIO SPECTRUM ANALYSIS
View the frequency content of live sound as it happens. The spectrum analyzer separates the incoming audio into frequency components, making it easier to identify peaks, harmonics, resonance and changes across the sound spectrum.
FFT FREQUENCY ANALYZER
Use Fast Fourier Transform analysis to examine the frequencies present in music, speech, instruments, speakers and environmental sound. Follow frequency peaks and observe how the signal changes over time.
LIVE SPECTROGRAM
Turn sound into an easy-to-read visual frequency map. The spectrogram displays how frequency intensity develops over time, helping you recognize tones, harmonics, patterns and transient sounds.
AUDIO WAVEFORM DISPLAY
Watch the shape and amplitude of the microphone signal in real time. The waveform view provides a direct visual representation of changes in volume and signal behaviour.
RTA FOR AUDIO TESTING
Use your iPhone or iPad as a convenient real-time analyzer for:
• Speaker and stereo testing
• Room and acoustic checks
• Music and instrument analysis
• Identifying frequency peaks
• Monitoring background noise
• Examining voices and sound effects
• Audio equipment testing
• Learning about sound and frequencies
UNDERSTAND THE SOUNDS AROUND YOU
Spectrum Analyzer: Audio RTA helps reveal details that are difficult to recognize by listening alone. Observe low, mid and high frequencies, compare different sounds and discover how every audio source creates its own spectral pattern.
DESIGNED FOR QUICK, CLEAR ANALYSIS
The responsive interface makes it easy to move between audio analysis views and focus on the information you need. Use it for technical checks, music production, education, acoustic experiments or everyday sound exploration.
KEY FEATURES
• Real-time audio spectrum analyzer
• FFT frequency analysis
• Live spectrogram visualization
• Audio waveform display
• Frequency and amplitude monitoring
• Microphone-based sound analysis
• Clear visual representation of audio signals
• Support for both portrait and landscape use
• Useful for speakers, music, voices and environmental noise
From simple sound experiments to detailed frequency inspection, Spectrum Analyzer: Audio RTA puts a capable audio visualization tool in your pocket.
Download the app and start seeing the frequencies hidden inside every sound.
Privacy Policy:
https://www.devtreelabs.com/privacy
Terms of Use.
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
ui improvements and bug fixes
The developer, brian koech, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- brian koech
- Size
- 21.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 34 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- pro weekly $4.99
- Lifetime Pro $49.99
- pro annual $29.99
- Copyright
- © 2026 Brian Koech