Good with some important limits

You cannot calibrate the i device microphone , even if you buy the plug in i device low frequency compensation (that you will discover you have to pay). This is usually a feature present in many other spl software even in some free prducts. The only alternative seems to buy the plug in for the external micW i436. In the ipad2 relise the screen rotation is not working, so if you use an external micro for idevices, you will have it pointed on the right side.
I think they

Tecnico Competente about Analyzer, v1.2.1