iOS software aka ipod and ipad

[drnelson]

http://studiosixdigital.com/
The Audiotools suite
to this can be add the follow optional modules

FFT
ETC
Impulse Response
SmaartTools I
Transfer Function
Transmission Loss (STC)
SPL Pro
SPL Graph
SPL Traffic Light
Polarity
Speaker Distortion
Impedance (meter and sweep)
STI-PA
VU Meter
THD+n
Phase Meter
Amplitude Sweep

They have an interface that connects to the dock connector and will allow you to measurement microphones and calibrate it to the software.

[drnelson]

http://www.faberacoustical.com/products/iphone/

Faberacoustical has released their acoustical measurement software for both the ipod and ipad

IOScope
SignalScope Pro
SignalScope
SignalSuite
SoundMeter
SpeakerDraft
dB