An android app that records using front and back camera in the same video file.

This app is available for use from Android version Lollipop to Pie.

Latest version is 1.6 which provides below features and fixes:

Provides the capability to record video without audio
Includes details on the location of media storage in settings
Includes User manual
Provides support for Android 13

FlipCam is available on the Google Play Store.
https://play.google.com/store/apps/details?id=com.flipcam

Please check below website for a review of FlipCam.