It's supposed to work on a Samsung Galaxy S. I bought it for my S2 and all it does it crash with "The application FMRadio Recorder (process com.tarsys.fmradiograbador) has stopped unexpectedly. Please try again."
The author claims it's compatible with the Galaxy Player yet has not set the compatibility flag for it.
The author also says "Note: Samsung Galaxy S2 plays the radio, but when recording... hangs... NOT PURCHASE IF YOU HAVE AN sgs2", yet the author still has the app set for S2 compatibility.
So I would recommend NOT PURCHASE IF YOU HAVE ANDROID.