Well known for its tracking of TV audiences - amongst many other markets - US outfit Nielsen has now announced its Mobile Game Tracking service.
The data is generated from a random, weekly sample of 1,200 online interviews amongst active mobile gamers aged 7-54 years old and compared to Nielsen's existing database, which consists of 180 games, tracked over the past 12 months.
Week-by-week
Broken down in terms of demographics and gameplay behavior etc, this is particularly important for developers in terms of working out their pre-launch marketing strategy, and comparing their game to competitors in the market.
High level examples of what Nielsen produces can be seen below.