Inaccurate
Poor frequency resolution. No way to adjust frequent scaling. No numerical scales on frequency or time axes. Noise reduction filters everything, including monotones.
Yes, Audio Spectrum Viewer is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
Audio Spectrum Viewer is free.
To get estimated revenue of Audio Spectrum Viewer app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
Poor frequency resolution. No way to adjust frequent scaling. No numerical scales on frequency or time axes. Noise reduction filters everything, including monotones.
I used it to try out different whistle pitches. Works great.