I find this little app does what it claims to do. Seems to do it very well. downloads most vids in 720p at least the ones I've wanted. I gave a donation and now any YT vid I want as a mp3 works. I think it is a great app. Plus if you have any issues all you have to do is follow the instructions and informed the developer. The developer is has been very quick to respond. Usually in less than 24 hrs. So I keep my rating at 5 stars!