For simple mixing i would recommend virtual dj or traktor.
"If it's a choice between eternal hell and good tunes and eternal heaven and new kids on the fucking block … I'm gonna be surfing on the lake of fire, rocking out, high-fiveing Satan every time I pass the motherfucking shore." – Bill Hicks
) So he is better off starting off with a very simple app then working upwards as he gains knowledge. Something he can easily add two or more tracks to, add effects, play with the bass/treble etc and save the output to mp3. I will try the above but please keep the suggestions coming.
