It's been a strange few weeks for the Spotify app, at least the iPhone one. Reports from December suggested that the company was working to bring in-app purchases back to its app after having removed the ability to sign up for Spotify Premium back in 2016. That was based on code found within its app which showed that there were indeed references to options that would allow people to sign up once more.
However, things got more interesting when just a day later Spotify was moved to respond, saying that it wasn't bringing in-app purchases back to the iPhone after all. Farshad Shadloo told The Verge that “we have no plans to switch IAP [in-app payments] on at the moment.”
