BTW, you can get a cut down version of SMAART inside of Audio Tools for iOS from Studio Six Digital.

http://www.studiosixdigital.com/audiotools-modules-2/acoustic-analysis-modules/smaart_for_audiotools/

I forget how much I(my employer) paid for it, but it was silly cheap compared to past pricing of SMAART. At the time I also purchased the calibrated measurement mic that Studio Six Digital markets as well.

http://www.studiosixdigital.com/audio-hardware/itestmic/

If you end up having interest, some things to keep in mind with the iTestmic:
1. The cable is only about 12" long
2. It does not come with a case