Finally got an answer from Apogee on this.
Apparently the sampling rate issue in iOS is a little unusual since even though the Mic is 96k itself and some applications are capable of recording at 96k, the iPhone’s own internal DAC is only 48k-capable to play the file back.
For example, if you are using our own Apogee MetaRecorder app along with a MiC 96k and recording at 96k, the file itself will be recorded at the higher sampling rate. But in order to play the file back through the iPhone’s headphone output, the MetaRecorder app must apply Sample Rate conversion to knock the file back down to 48kHz so the phone is able to play it. The audio file itself remains at 96k, and when you export it to a Mac and open it in a 96k-capable DAW like Studio ONE for editing, it will still be at 96k.
