Good luck to the guys. I released a similar app a few months ago - Beatwave (<a href="http://beatwave.co" rel="nofollow">http://beatwave.co</a>). We've just hit 1.2 million downloads so the download numbers they're after are fairy realistic I think. Just have to make sure the monetization is spot on to capitalize though!
100k downloads per month to make a living. I don't know a lot about the app ecosystem but that seems like low profitability. ie. relying on something taking off with hundreds of thousands of people to only make a conservative amount of cash.
How many are on staff and what are the salaries? I'm just wondering since it's seems that you could cut some of the cost and keep up longer, if that's what it takes?
tl;dr
A struggling Norwegian startup is doing daily updates for the rest of their 100 day runway.
To be profitable they need 100.000 downloads on their music app, which is soon released (now being reviewed by Apple).