Hi friend I am sharing my personal experience with Vidmate. I used this app for download youtube videos. beat thing is that you can download videos in many formats. this app is also give you facility to download movies but movies quality are not good. as you want, this app can slow your mobile device. you can not download this app from play store. this app contains many adults advertisements. I do not prefer to download this app to use kids. uf you want youtube videos in many format then you can download this app. it is some usefull app abd concept are so easy to use this app. also features and functions are excellent. Design and layout are beautifull.