SoundHound and Shazam are amongst the most popular music recognition apps out there and the former has just upped the ante on Shazam. SoundHound, probably in the holiday spirit, has decided to update the free version of its Android app to allow for an unlimited number of music IDs, a significant increase from the previous limit of 5 per month. Shazam’s app currently functions in a similar manner but still maintains the limit of 5 music IDs per month. If you’re on a shoestring budget, the choice between the two is probably a no-brainer at the moment.