Suprisingly accurate.

I was hesitant to buy this app, thinking there was no way it could be remotely accurate. But since it was ten bucks, I figured it must be somewhat professional. So, I bought it, played with it a little, and then tested it against my analysis rig. I use smaart v.6 with a sound devices usbpre and an audix tr40a mic. I set up my rig and tested this app against it and was blown away by the results! Its very accurate considering the hardware it uses, and is a great app to have as a pocket rta. Its not as accurate or in-depth as smaart, but its handy and is less than 1/100th the cost of my setup (not including the computer required to use it.) Overall, a great product. I have since bought studio sixs tone gen and polarity check and am pleased with them as well.

MRsound011 about RTA