Sonarworks SoundID Ref Spk & HP w Mic

Handling the microphone during meaasurements can seem a bit dodgy at first, but after marking the center point between my monitors (center point of my screen) and taping a lace there to align the microphone with it was a piece of cake to follow the instructions so my 4 stars for handling is actually 4.5.

Features - the app has a gazillion headphone model profiles available and also a number of target examples to compare your mixes against.

Sound - once you've heard the calibrated/flattened sound of your speakers/room or headphones you want to always have it on.

The only thing I miss is some kind of report between the app and the VST3-plugin so you don't have both on at the same time.

I wish I had bought this years ago.

This is very very good. I had a "mid range" equipment with Monkey Banana speakers and it sounded so so..
The reason why I got it so good is also due to the fact that I sound proofed the room before with panels.
I run the guide as perfect as I could (took me a good hour) and the result afterwards were stunning.
Like listening to music in a professional high end studio. All friends that listened to it have commented it.
The plugin to Logic works great as well. Just don't forget to disable it when you bounce your songs!
I got very good monitoring with my Apple Air pod Max and a dedicated cable (no latency). Very good isolation. SoundId has a ready made calibration for these earphones.