Turns out, you can unlock the premium features of YouTube without paying for a subscription — in a way that’s free and legal.
it's just an upgrade to the existing YouTube app. Subscribers see the word "Premium" next to the red YouTube logo upon signing up for the service. As a result, YouTube and YouTube ...
If you're thinking, "Wait: I pay $19 a month for YouTube Premium. What's this about $14 a month?" that means you likely subscribed in the app, rather than the website (at least on iOS).