So Ive been using this app for about a year or so and Ive had no problem making mixes offline or mixing and then having the internet go out up until now. It will say "you appear to be offline" or something like that and then the screen goes black and I have to restart the app loosing my progress. However its a great app and I really enjoy it. Keep up the good work!!!
DJ Bangs about Crossfader, v5.6