Frequency Analyzer vs Spectrum Analyzer

See exactly what you're hearing. Frequency Analyzer: SpectraLab turns your iPhone into a precision audio analysis toolkit. Measure live frequency content, generate test tones, and visualize sound in real time. ANALYZE Point your phone at any sound source and see the dominant frequency instantly, in Hz, with a clean live readout. Perfect for tuning instruments, diagnosing hums and buzzes, checking speaker response, or just satisfying your curiosity about the sound around you. SPECTROGRAM Watch sound unfold over time with a vivid, color-coded spectrogram. Spot patterns, harmonics, and anomalies that a single number can't show you. GENERATOR Produce precise test tones and sweeps on demand. Sine, square, and more, with fine control over frequency and amplitude. Useful for speaker testing, hearing checks, room acoustics, and calibration. LIBRARY Save your measurements and exports, organize them with custom labels, search and filter by type, and quickly preview or share anything you've captured. FREE TO START The core analyzer, generator, and library are free to use. No account required. GO PRO Upgrade for larger FFT sizes, every window and weighting function, full-length spectrogram history, unlimited saved presets and export history, noise threshold alerts, and CSV/PDF report export. Try Pro free for 7 days. Whether you're a musician tuning by ear, an audio hobbyist, or just someone who wants to know "what frequency is that?". SpectraLab gives you a clear, accurate answer in seconds. Subscription pricing: - Monthly and Yearly plans available, each with a 7-day free trial - Payment charged to your Apple ID account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Manage or cancel your subscription anytime in your Apple ID account settings - Privacy Policy and Terms of Use available in the app and on our website

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/