Martin Logan and Paradigm subs both use Anthem’s ARC Genesis software and a USB mic for room correction. The software can be downloaded for free but I think you have to buy the “Perfect Bass Kit” to get the mic.
The ARC "kit" and SW is a joke. Absolute garbage hardware.
You might start by researching the value of two, or more subwoofers vs. one.
This is what I did. Assuming you are not building a home theatre, using 2 subs as bass extensions of your mains is relatively easy. No subwoofer crawl or gimmicky software with "special" mics required.
Alternatively, buy a miniDSP 2x4HD, UMIK-1 and download REW and any sub can be room corrected.
Nonsense. No room correction solution can "room correct" a sub that is in a room that is an acoustic nightmare, which is the case for many of us without purpose built rooms.
I agree a remote for my RELs would have been nice though.