If you weren’t satisfied with the free book you got out of today’s “12 Days of Gifts” giveaway, here’s another great deal on iOS.

Usually $6.99, SoundHound Infinity is now free on the App Store. SoundHound Infinity offers all the same features that you get from the regular SoundHound app, only it gets rid of the ads. So if you’re already using SoundHound and want to start using it ad-free, now you can just switch to this premium version without paying anything.

The critically acclaimed app includes this features:

  • Blazing fast music identification
  • The world’s only singing and humming recognition
  • LiveLyrics: see lyrics move in time with the music
  • SoundHound Headlines: brings you free song streams, new artists, and more
  • SoundHound Player: Play music in your library through SoundHound with LiveLyrics
  • Real-time Facebook and Twitter updates from your favorite artists
  • Facebook and Twitter sharing, listen-on-startup, and geotagging
  • iTunes links, YouTube videos, Pandora station launching, and much more
  • Listen to songs you’ve identified with SoundHound instantly in Rdio and Spotify

It seems like the sale might actually be part of the “12 Days of Gifts” promotion in certain foreign countries, so don’t expect the price cut to last for too long.

SoundHound Infinite is a universal app for both iPhone and iPad, download it here.