Spotify connected to television streaming services, including Netflix and HBO Go, that recommends content to users. Spotify will mainly be using MightyTV to improve its advertising efforts on the free tier of service. In April 2017, Spotify acquired Mediachain, a blockchain startup with several technologies that can aid Spotify's effort in connecting artists and rights-holders with the tracks on its service. In May 2017, Spotify acquired artificial intelligence startup Niland, and will use its technology to improve its personalisation and recommendation features for users. In November 2017, Spotify acquired SoundTrap, an online music studio startup. On April 12, 2018, Spotify acquired
Criticism of Spotify Ergatoudis said: "I've got every reason to be very optimistic Taylor Swift will be coming back to Spotify. I'm not saying it's done, but the indications are good, put it like that". Swift collaborated with Zayn Malik for the song "I Don't Wanna Live Forever" for the movie "Fifty Shades Darker". The song, released in December 2016, was withheld from Spotify for one week after its original release on competing streaming services. In June 2017, it was announced that Swift's full catalog would be released on all streaming services, including Spotify. On social media, Swift's management team stated: "In celebration