Spotify’s Discover Weekly Feature, which gives tailored music recommendations, is used by 40 million people, with nearly 5 billion tracks streamed since its launch in July 2015.
The playlist is updated every Monday morning and delivered as a “weekly mixtape” of personalised music.
Music streaming app maker Spotify said more than half of all Discover Weekly listeners come back the following week, stream at least 10 tracks from it each week, and save at least one song to their own playlist.
Discover Weekly is most popular with the 25-34 age group, closely followed by the 55-plus age group.
The firm said the feature also helps artists get discovered and “meaningfully grow their fan base”.
The app maker is yet to post a profit and is dealing with competition from Apple Music and Tidal. In 2015, its net loss worsened to €173 million, from €162 million in 2014.
However, revenue jumped to €1.95 billion, a 45 per cent increase from 2014, and it had 89 million active monthly users at the end of 2015, up from 60 million a year earlier.
As of March, it had 30 million paying users.
Spotify has also been busy with acquisitions. Last month it acquired CrowdAlbum, which aggregates photos and videos of artists from their performances, and before that it bought Cord Project and Soundwave, to “further boost its product and engineering capabilities”.