It’s hard to make money with music apps. The competition is intense, and most people simply are not willing to pay much for music apps; either because music is something they only do casually or because if it’s something they do professionally, they probably don’t have money.

Akinori Fumihara of Nana, however, is succeeding despite the odds. Nana is a collaborative music creation app, where different users upload and submit different tracks to a song, which can be edited and remixed by others to create an unlimited number of arrangements.

Today Nana has a highly engaged global user-base that numbers in the millions, but it almost did not work out that way. Three months after the initial release, Nana was running out of money and was watching new installs trend towards zero.

How Aki and his team managed to turn things around is an amazing story, and one I think you’ll really enjoy.