When comparing Slacker Radio vs Last.fm, the Slant community recommends Last.fm for most people. In the question“What are the best music streaming services?” Last.fm is ranked 5th while Slacker Radio is ranked 10th. The most important reason people chose Last.fm is:
Last.fm scrobbles music from wide range of devices and music players, not just from official apps such as [Scrobbler for Windows and Mac](www.last.fm/download), [Scrobbler for iOS](https://itunes.apple.com/app/scrobbler-for-ios/id585235199), [Last.fm for Android](https://play.google.com/store/apps/details?id=fm.last.android) and [Last.fm for Spotify](http://open.spotify.com/app/lastfm), but also a wide range of 3rd party Last.fm apps that are available on many platforms, built using the [official Last.fm API](www.last.fm/api) such as [ScrobbleMe for Windows Phone](https://www.microsoft.com/en-us/store/apps/scrobbleme/9nblggh0dg4r), [Simple Last.fm Scrobbler for Android](https://play.google.com/store/apps/details?id=com.adam.aslfms&hl=en), [Last.fm Scrobbler for Chrome](https://chrome.google.com/webstore/detail/lastfm-scrobbler/hhinaapppaileiechjoiifaancjggfjm?hl=en), [FoxyScrobbler for Firefox](https://addons.mozilla.org/en-us/firefox/addon/foxyscrobbler/) and the built-in Last.fm scrobbling in Deezer.
Ranked in these QuestionsQuestion Ranking
Pro Curated music streaming service
Actual human beings take time to decide what should be played, and on what stations. Sometimes people curating these stations are professional DJs who have experience in curating music content. This makes the music streaming service feel much more organic.
Pro Large music library
Offering such a large library ensures there is enough music of different kinds to appeal to anyone.
Pro Algorithmically generated stations
Stations are created based on an artist, album or track. Slacker then recommends tracks to the user who can either upvote or downvote them, and Slacker will follow suit and recommend tracks considering how the user voted.
Pro Low cost subscription
There's a mid-tier subscription of only $3.99 and a full subscription of $9.99
Pro Works on a large number of platforms
Web, iOS, Android, Windows Phone, Blackberry are all platforms that Slacker will work on.
Pro Streams for free on T-Mobile
Pro Allows downloading stations locally
Easily save music for offline use by downloading the tracks that you enjoy.
Pro Supports a wide range of platforms, music players and browsers
Last.fm scrobbles music from wide range of devices and music players, not just from official apps such as Scrobbler for Windows and Mac, Scrobbler for iOS, Last.fm for Android and Last.fm for Spotify, but also a wide range of 3rd party Last.fm apps that are available on many platforms, built using the official Last.fm API such as ScrobbleMe for Windows Phone, Simple Last.fm Scrobbler for Android, Last.fm Scrobbler for Chrome, FoxyScrobbler for Firefox and the built-in Last.fm scrobbling in Deezer.
Last.fm checks what you listen to the most, they're calling it scrobbling, and streams songs based on that information. It works via your computer, smartphone, iPod and other music services.
Pro Last.fm Tag/Artist radio
Play songs similar to "X" from Youtube.
Con Rather intrusive ads
While it's understandable that the free tier will have ads, between video, audio and banners, they can be quite intrusive.
Con UI is too focused on social media
About half of the UI wastes space on social media info posted by Slacker Radio hosts and DJs. Basically advertisements (but different from their regular advertisements), but in a social media setting.
Con Lack of compositions
The most popular are there, but forget about something unique.