Analog To Digital hardware

HI, I'm developing an iOS app that accepts an audio signal as input with the goal of analyzing the signal.

For my experiment I purchased a cheap ADC-DAC produced by Sabrent. It works well but the sampling rate is 44.1 khz but I need at least something more (96 khz). I'm looking around but I find many DACs used to connect headphones. Can any of you suggest me an ADC-DAC, preferably not too expensive with a sampling rate of at least 96khz, working with iphones?

Analog To Digital hardware
 
 
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