I was able to use it to convert one mp3 to wav file. Then you have to go to “History” find the file and copy and paste it into the location you want it on your ipad. I tried one more and it didn’t let me copy the file from history a second time. Program is just too hard to navigate and get your converson done. Perhaps it only lets you do one file and then you have upgrade to premium. I don’t know. Anyway this don’t work for me.