Selling a App

[Romoy]

My inquiry is about the Spotify API Commercial Use. I am a developer, and I am developing a Laptop Script that will have 20+ Apps. And I have developed a Spotify App that uses the Spotify API and the Spotify SDK, I made it clear in the app it is powered by the Spotify API. Do I need explicit approval to sell this script with the Spotify App? Please note I am not selling my tokens, client id or otherwise. The buyers will set that up on their end.

And I wanted to know if the app I made is too similar to Spotify's and If I have to change it. I have attached some images.