A new spectrum analyzer app was released today, creatively titled Spectrum Analyzer.
Spectrum Analyzer for iOS is a powerful real-time audio analysis app. Designed with musicians and recording engineers in mind, it can also be used by anyone interested in the world of sound. Ideal for room tuning or speaker tuning, the app enables portable, precision audio measurement and visualization.
Feature Highlights:● Octave Band Real Time Analyzer
● FFT Plot (Fast Fourier Transform)
● Spectrograph module
● Test Tone and White/Pink Noise Generator
● Retina display and iPhone 5 ready
Audio input may be acquired via the built-in microphone or an external measurement microphone. For best results we recommend using a calibrated measurement microphone connected via USB audio interface or iPhone dock connector.
This requires iOS 6, but they note that it is completely integrated as a single app with no IAPs. Spectrum Analyzers are pretty fun to geek out on, but they are always pricey. As an alternative there is site sponsor Spectral Eye, which is free.
Here is a demo from the developers.