Here’s some more video and audio kit recommendations.
I got a Rode Me microphone that has a lightning plug that goes straight into the iPhone. It was about AUD90 (USD 60) on Amazon. The audio quality of the mic. is great. You can hear an example here: link.
I also got a Joby Griptight One for AUD38 (USD28). It’s great as it attaches to everything.
My camera is a Logi Stream Cam. They picture is great. The microphone isn’t as good as the Rode microphone but good enough. Sells for AUD230 (USD150)