Yes. To connect the AI-Micro to an iOS device with a Lightning port, you need a MFI Lightning Accessory Cable – either the included SC21 cable, or the RØDE SC15 or SC19.
For more information about MFI USB cables, please see our article here Why is a MFI-certified USB cable needed to connect my microphone to an iPhone?
For more information about AI-Micro, please see our AI-Micro User Guide.