I need a decent music app for my iPhone and I can't find anything

I tried Musify and another free MP3 downloader apps that had up to 20,000 ratings but I didn't get anything out of them at all. Every time I try to search for a song, all I get is covers of songs and I want the real thing. I don't care to watch videos.
I just want something I can download music on to listen to while I exercise and stuff.

You can get pandora radio,
iHeart radio, Apple has iTunes Radio in the music app. The only thing is you can only skip songs a certain amount of times a day.

I agree with Ocean, because those so called "Free MP3 Downloaders" will have nothing but remixes and covers. I would get Spotify or use iTunes radio app (Which should already be on your phones iTunes app).