Capture Multi-Cam videos using both cameras simultaneously on an iPhone

I've wanted to record with both cameras while doing a walkthrough or doing video interviews or other purposes but had no idea how to do it. It turns out it is super easy now that Apple added support for multi-cam recording to their more recent iPhones. I used DoubleTake for this video on my iPhone SE to make this video

Other programs claim to require X, 11 or, 12 derivatives. DoubleTake supports the Phone SE 2 which has similar CPU power.

Multi-cam recording feels like a great tool for Vlogging, interviews or, other purposes.

Video

Video recorded on an iPhone SE

One App

I used DoubleTake because it explicitly said it supported the iPhone SE

Capture Modes

The application saves the recording in .mov files.  I renamed them to .mp4 files and they loaded without issues in my editor.
Discrete
Each camera recording is saved to its' own track. The sound is recorded into both video tracks.

Editing software can manipulate the two video feeds separately.
Picture in Picture
The recorded video is stored as a single .mov file with audio.  The image is stored PiP style, as it looks on the screen.
Editing software sees it as a single recording.
Side by Side
The recorded video is stored in a single .mov file with audio.

Editing software sees it as a single recording.

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