HouseCurve 4+

This is a great app. It helped me troubleshoot some issues with my Audyssey room calibration due to the proximity of my seating to the back wall, which was causing some reflection cancellations. It’s not “reference level” but it didn’t need to be for this purpose. The developer was quick to respond to my questions about hardware and measurement technique.
I have an iPhone 13 Pro and the mic is good enough to get the job done. If I spent the money on a UMIK I would be using REW instead, but this app was the right tool just to get some idea of what my room challenges are. I tried using it with an iPad Air 4th gen too, but it gave me very different responses than the iPhone, perhaps due to its large reflective shape. The iPad rolled off below 50 Hz and had an increasing amplitude response above 2 kHz. Since I don’t have a reference mic, I’m trusting the iPhone more as it matches what I expect Audyssey to have done in terms of corrections, and the ramping frequency response from the iPad seemed grossly wrong. It probably just needs its own mic compensation.
Lastly the free app clip is perfectly executed to get a feel for what it can do.

It took me 10 minutes to figure out that I need to connect my ipad to the speakers to play the measurement sine sound. After that is done, and load the new profile into Soundsource on my mac. The sound is so much better. Before this app, I used to EQ match pink noise using FabFilter Pro-Q, but this app produces a much better sounding profile.

I do have dbx driverack pa 2 with rta-m mic, but that is for my live pa system. I use this app for my desktop monitor instead.

This is a great addition to Roon! Room correct any Roon zone with your iphone or ipad, and then create filters to be used for Roon room correction in the app.

I just used this to tune my main system and my desktop setup. The desktop filters made the speakers brand new again.

The other cool things is, even though Sonos has Trueplay tuning, you can still use this to tune things further. Since this does not do any positioning/delays/etc it makes the Sonos tune better for audio, but leaves the Trueplay tuning intact.

Roon is not cheap, but it is worth it for having room correction for all of your connected systems, forever, even as you updgrade your equipment over time. HouseCurve is a no brainer. Probably the most surpising finds for me in a long time.