Quote
The only other thing you need to do is download a dB meter app to your phone and follow the guide.

Outside of monitoring SPL at live events, I don't see the use.

It does not replace calibrating studio monitors to one's listening position with a dedicated measurement microphone and apps for applying and storing the settings. At $299, ARC Studio isn't bad but, with only 9 bands of adjustment, isn't great either. Here's a rundown of Room/Monitor Calibration Apps & Hardware ranging from $299—$12,000.

The nice thing about a box is that is stores the settings in your monitoring chain. 'Apps-only' such as the ARC 4 App require the settings to be inserted when you monitor and bypassed when you export the audio or bounce to disk. There is a workaround for Mac using an Aggregate Device to host the app but Windows does not have this functionality—again, the box makes it a non-issue.

BIAB 2024 Audiophile Mac
24Core/60CoreGPU M2 MacStudioUltra/8TB/192GB Sequoia, M1 MBAir, 2012 MBP
Digital Performer11, LogicPro, Finale27/Dorico/Encore/SmartScorePro64/Notion6 /Overture5