Slack no Twitter: "@rachyliz Downloading mp4s on iOS is currently limited to videos that are in your app's cache. Tap the `Tap to play` button, then wait for the file to load
VID File Extension - What is a .vid file and how do I open it?
How to Convert a Video to MP4 in Node.JS | by Cloudmersive | Medium
VID to AVI - Convert VID to AVI, Change VID to AVI, VID to AVI Converter, VID to AVI Conversion