PLEASE HELP – Offline Files & Web Browser Review

I don’t know if it’s me, but I’m pretty sure I’m using the app right, because I have had apps like this one before. Where I can just go to YouTube, search up a song i would like, and some options would pop up, like download. I’ve been downloading, and deleting this app for the last few days to see if it will change, since my friends told me that I should wait a few days and try again. But I don’t think it’s working out, and it’s either the app, and needs fixing. If there was an option like other apps, where I could just click download and have it in my phone, I would totally rate it a 5 star. Could you try to fix this, and tell me when this is going to work for me. Thank you!
Review by kunyeeea on Offline Files & Web Browser.