Spotify has announced that its mobile app is now available as a free service Windows Phones.

The Spotify app works both as a free streaming music player and still as a premium paid service for selecting certain songs and artists.

Nokia Mix Radio offered a similar free service but with Microsoft buying the company now might seem like the right time for Spotify to dip its "fremium" toes into Microsoft's waters.

The free service allows Windows Phone owners to shuffle play any playlist or artists' catalogue available. It also allows users to create their own playlists, but these will be for shuffle play only. The premium version of Spotify lets users play any song any time and even save unlimited tracks offline for playback without an internet connection. Spotify Premium is charged at £10 per month.

"We’re excited to see Spotify made available for free on Windows Phone," said Steve Guggenheimer, corporate vice president, Microsoft Corp. "This puts a much-loved listening experience in the hands of Windows Phone fans across the world, and beautifully showcases both our platform and the Spotify service."

Spotify is available to download now for Windows Phone 8 and Windows Phone 8.1. With manufacturers like HTC selling Windows Phone versions of their flagship smartphones it's clear Windows Phone is growing strong.

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