Here is an audio interface that combines with your iOS/Android device to make vlogging, podcasting, and livestreaming with two people easier. The Saramonic SmartV2M audio interface comes with Lightning, USB-C, and USB-A output cables. It includes microphone preamps and an analog-to-digital converter.
This audio interface is compatible with PC and Mac devices too. It has a convenient mono/stereo switch and real-time monitoring.