Been using RTA Pro Analyzer for a couple months now. It’s basically a super advanced real-time audio spectrum analyzer app. Pretty solid if you’re into that kind of thing.
Here’s what you can do: there’s a ton of customization options like different band spacing and up to 120 frequency bands. It’s got scalable peak holds and a bunch of color schemes too. And you can save calibration data permanently, which is useful. Took me a while to figure out all the features but they’re pretty cool once you get the hang of it.
Look, if you’re an audio engineer or sound designer, you’ll probably love this app. It’s not perfect – the UI can be a bit clunky at times – but overall it does the job really well. Worth checking out if you need a powerful RTA tool.