Do we need an MFi authentication chip to send video/commands to iPhone?

Hello, my company is developing a product that will send data to/from the phone over cable and Wi-Fi. I have three questions:

  1. Do we need an MFi authentication chip in our product if we plan to send video and commands to the iPhone/iPad over USB or Lightning cable?

  2. Likewise, do we need an MFI authentication chip for communication over Wi-Fi? (Informal research suggests that the answer is no to this one.)

  3. And, do we even still need MFI certification at all for Wi-Fi comms? (We are not using HomeKit.)

Thank you!

Do we need an MFi authentication chip to send video/commands to iPhone?
 
 
Q