V-Car app for rear WiFi camera
This is just a mirror to download the app V-Car, used in Chinese WiFi rearview and front cameras. I tested it myself and it does not require abusive permissions: access to WiFi configurations, microphone (to record sounds) and storage (to save videos). It worked well on Android 8.0 in my Galaxy S8.
Since I am not the developer of this software I will not answer any technical support question regarding this application. Download and use it at your own risk.