When comparing Groove Music vs Deezer Music, the Slant community recommends Deezer Music for most people. In the question“What are the best music streaming services?” Deezer Music is ranked 3rd while Groove Music is ranked 11th. The most important reason people chose Deezer Music is:
The Deezer music streaming service is available in 182 countries. There are 192 countries on this world, which means Deezer is available in all but 10 countries.
Specs
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Pros
Pro Available cross-platform
A Groove Music application is available for Windows 10, Xbox, Android, iOS and Windows Phone. There is also a web app that will open all of your music with a simple sign in.
Pro Huge music library
Groove Music has a massive music library with over 40 million songs, more than Spotify, Tidal, Deezer and Google Play Music,
Pro Integration with OneDrive
Groove Music integrates the music streaming service with OneDrive so that users can stream their own music files hosted in their OneDrive.
Pro Modern UI design
The designs of each Groove Music application from the web application to the Windows Phone 8 application are all slightly different but they all share a modern and attractive design. Though the applications on iOS and Android are less appealing than on the other platforms.
Pro Ability to request missing content
While other music streaming services simply suggest to contact the artist to add their music to their service, Groove Music allows you to easily file a request for missing content right from the Groove Music player.
Pro Free music streaming on computers and tablets
The Groove Music web application and Windows 8/10 application offer free music streaming on demand or artist based radio stations with unlimited skips. Although there are occasional advertisements and after 6 months of use, free streaming is limited to 10 hours a month.
Pro Over 92,000 music videos available with Groove Music Pass
Pro Has monthly and yearly subscription plans
The Groove Music Pass offers unlimited on demand music and artist based radio stations with unlimited skips, no advertisements, and offline playback. A one month Groove Music Pass is $9.99 and (a better deal) a 12 month pass is $99.90. The 12 month pass is great for kids, those that do not want to pay for a continuous subscription, or those that do not want to use their credit card.
Pro Available to customers living outside the US
The Deezer music streaming service is available in 182 countries. There are 192 countries on this world, which means Deezer is available in all but 10 countries.
Pro Huge collection of music
The Deezer music streaming service has more than 40 million songs, which makes Deezer one of the largest music catalogs available now.
Pro Built-in lyrics
Deezer comes with a lyrics feature where users can see the lyrics when the selected track is playing.
Pro Available on a large number of platforms
Deezer (with a premium subscription) is available on a wide range of devices such as those running Windows, Mac, iOS, Android, Windows Mobile, smart TV and a web app. You can see the full list here.
Pro Personalised radio
The Deezer music streaming service offers a radio-like service called Flow which plays random music based on your favorites.
Pro Outstanding CD quality (with Elite Service)
For those that subscribe to the Elite Service ($19.99/mo), the bitrate is hi-def CD-quality 1,411kbps at 16/44.1 kHz.
Pro Great choice of Musi Mixes
You can download mixes and save.
Pro Inbuilt music ID feature
Cons
Con Poor music quality
Bitrate quality is not explicitly stated by Microsoft, but music is reported to be streamed at 192kbps WMA which is lower than most comparable streaming services. While music is downloaded at 256kbps WMA, an improvement but still lower than Google Play Music and Spotify.
Con Inconsistent updates to Android app
It's a lot better than it used to be, but the update cycle is a slow and painful process.
Con No social network integration
This may be a huge pro or a con for different types of people. Groove Music does not offer comprehensive social integration like other music services such as Spotify. The only social feature Groove Music offers is the ability to a share a link to a song to Twitter, Facebook, or email. Groove Music will keep all your musical tastes strictly private unless you individually share it.
Con No song lyrics

Con No family plan
Many other streaming services now offer a family plan, Groove is lagging behind.
Con No tablet specific app for iOS or Android
The exclusion of a tablet specific application leaves Android or iOS tablet users with an unoptimized feeling experience.
Con Doesn't pay artists enough
Deezer pays artists significantly less than other similar services. As of March 2018 it was paying $0.0064 / play, less than Apple Music and Google Play, half as much as Tidal ($0.0125). Not as bad as Spotify or Pandora, but could certainly do better.
Con Sometimes skipped songs occurred
Some songs skipped even if you are a premium user.
Con A lot of songs are cut at the end
Many songs are not played until final chords, and many others are of very low quality records, showing audio distortions. This is frustrating.