Design and implementation 2 pages for an existing App with 2 pages:
I have already a fully functional Spotify App.
Simple job. You can finish this job in few hours.
All the info you need to respect for the design is here:
and here https://developer.spotify.com/technologies/apps/
More details in PM.
You will receive payment and you get paid when Spotify accepts the app and it is visible in their app store with all the functionality it currently has.