Hey friends!
I am using vidmate since last year it was really good app for download youtube video, movie and other videos which of them you can not download directly like YouTube videos so this is really a good app.
But a real question is that it is secure
I also doubts about it security because you cant download from Google Play Store so if you want to use it then you will use your own risk.
My opinion
My opinion is if you want to use then you can use but after cancel its unusefull permission from setting and not use more data like card details etc.