Amazon.com Inc has introduced an ad-supported free version of its music streaming service , taking on rival Spotify Technology which has nearly 140 million users for its free version.

Amazon offers paid plans for its music service starting at $9.99 per month and it is also part of its prime bundle. The company launched a free version of its music service for Alexa users on Echo devices in September.

Spotify, the world’s most popular music streaming service, also offers a “freemium” model that includes a free ad-supported version along with a paid ad-free version at $9.99 per month.

Apple Music offers only paid subscription service for $9.99 per month.