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
Rdio and the aggregators BFM Digital, Catapult, CD Baby, Finetunes, INgrooves, and The Orchard. Rdio also offered social networking features, such as the ability to share songs, albums, and playlists with others on Rdio and social networks such as Facebook and Twitter. On November 16, 2015, Rdio filed for chapter 11 bankruptcy in which they had to pay $200 million and announced the sale of certain intellectual property to Pandora Radio. The purchase price is $75 million in cash. Rdio was launched by Skype Technologies founders Niklas Zennström and Janus Friis on August 3, 2010. At the time they had to