No-one really knows what Spotify’s US growth has been since launch a month ago month, but it appears to be making an impact on American iPhone users. Onavo, a service which shrinks your data use on the iPhone, can track what data people are using, and has thus produced some interesting stats. Spotify’s app is very aware of its data usage allowing plenty of control such as the ability to disable the sync of playlists over 3G and offline listening, among other options.
Spotify’s iPhone Usage Jumps
