SignalSpy - Audio Oscilloscope, Frequency Spectrum Analyzer, and more 4+

Until they spend time fixing this app, avoid it eveb though it is very nice to have scope software on a Mac at low cost. It just doesn’t work for the treble audio band because it simply won’t scan fast enough, a shortcoming that renders is close to valueless for any audio work. Wholly wacko system of synching to signals bearing no relationship to what hardware scopes do - it grabs a moment and show it. It is not able to run along in real time, like other scope programs do and lousy rudimentary synching. Poor, crude, and noisy graphics using a black background when plain old black lines on white background is vastly easier on the eyeballs. Developer does ot reply to inquiries. Apple shoud definitely remove this poor app from the store.

I've been using this app every couple of times a year for a couple of years now. Sure, I've had some trouble at times with Audio inputs and configuration, but I can say the same of some really expensive professional audio apps. The real question is, what is this app for? If you're trying to do some fancy engineering work, yeah, the Oscilloscope is missing many standard features. If you're using is for musical purposes, same thing... Where are my musical notes? while it may be lacking in many advanced features, It does provide a very clean set of basic tools. I like to muck around with my music synth, and I can get a very quick idea of what my filter is doing or how my oscillator shape selection is giving me more or less harmonic content. My daughter used the app to do a science fair project and it worked brilliantly. I just want to pour some love on this app. It gets way more criticism than it deserves for a five buck app. Well worth the money IMO

I want to like this app - the graphics quality and response time seem really good. But it crashes as soon as it tries to use my BlackMagic Mini Recorder, which is the simplest interface available to ingest HD-SDI video. Practically any other sound-related app can see this audio with no problem. This would be a great tool for quality-checking imbedded audio, but if all it can use is the built-in mic, that isn’t much use. The developers never responded to my inquiry about this, and their website doesn’t exactly inspire confidence. Please, fix this bug so I can leave you an updated higher rating!