ATMOS measurements

[BrokenWorks]

I have installed a Dolby Atmos 7.1.4 system for a client. He is using an Apogee Symphony Studio 8x16 with Logic Pro. Apogee's Control app supports eq, trim and delay per speaker. Can REW be used to derive these measurements to calibrate this system or, as a music retailer has suggested, do we need something like Sonarworks SoundID Reference for Multichannel with Measurement Microphone for $550? Thank you for your advice.