Vidio without installing anything
A browser page. Nothing to install.
By using this site you confirm you have the right to download the file you request.
An app would not help with the real obstacle
The thing that stops a Vidio link here is region licensing, applied at their end before anything reaches us. An app installed on your phone runs into the same wall from the same place — unless it routes you through somewhere else, which is a different decision with its own consequences.
What runs here is about five kilobytes of JavaScript, and the fetching happens on our side.