If somebody tell me, is there some difference between program (I have IDoser 4.0, I think its that one

Thank you all for answer.
But does it decrease the potency?starlightsurprise-xo wrote:the mp3 sounds you can play without the program... for example on your iPod, but you need the premium version of the program to transfer it i think . you can also buy the mp3's onlinehope this helps!