Apple Lightning to Digital AV Adapter https://www.amazon.com/dp/B009WHV3BM
This one. 10 bucks cheaper than on Apple website. Don't ask me why but it seems like a legit apple product
No, the GoFanco will not your charge your phone. It will power the glasses only. You will need another solution for keeping your phone charged. I don't have an iPhone so I don't know your options for this.
Also, I believe that you need the Lightning Adapter for an iPhone, and you may need to Bluetooth the audio as you may not get audio thru it.
The GoFanco style adapters do the same thing as the Nreal adapter except that the Nreal adapter does convert audio and it's battery powered. It cannot be charged while using, either, so it has a life of 2-3 hours.
Grab the NReal Air Adaptor and the Apple Lightning to Digital AV Adapter. Not a cheap solution, but it makes the glasses work with the iPhone without issue. I was sitting in the doctor's office just yesterday using my NReal Air glasses with my iPhone 13, watching YouTube videos to pass the time. Best that's out there at the moment, unfortunately.