The Quality Index runs through the Top 10 US paid-for apps & games chart, highlighting the biggest ballers on the market.
Angry Birds sits pretty at the summit of the American App Store, fending off the billowing smoke of Burn the Rope.
Families crop up not once, but twice on the leaderboard, with TV spin-offs and adaptation settling a few feuds.
Ubisoft's Uno gets a major update with the new 'Show 'Em No Mercy' mode, adding fresh twists and challenges to the classic card game.
According to Rovio, the redundancies are due to Angry Birds Dream Blast "not... performing as expected."
A fan of UNO? Of course you are, and that means you should be taking a look at what Ubisoft and Mattel have twisted in to UNO Party! Mania.
