It’s an interesting step, and one that might catch on. I might need to take another look at the app again I think.
Here’s what they’ve got to say about it:
**Please make sure to log into your correct JAM account, before updating to this version!**
Hey Jammers! This time we have a huge update for you. Enjoy the great advantages of BeatCoins the new virtual currency in Music Maker JAM. Update now and get 200 BeatCoins FOR FREE! Use your BeatCoins to get the newest and freshest music styles. The other good thing is, BeatCoins cannot only be bought, but also be won through contests or redeemed by finishing sessions in our new JAMCADEMY. Happy Jamming!