Generally, you need to pay $9.99 to access Amazon Music Unlimited's huge library with over 100 million songs. However, after its 30-day free trial, you will find it does offer standout features that warrant a look, especially if you own one of Amazon's Alexa-powered products. Initially, Amazon's new music streaming service – Amazon Music Unlimited didn't impress us, as there are two giants stand on the market: Apple Music and Spotify, which block most people’s eyes.