The Quality Index runs through the Top 10 UK paid-for apps & games chart, highlighting the biggest players on the market.
Street Fighter II Collections knocks out the competition. Which includes WhatsApp Messenger again. How odd.
(Angry Birds, Capcom, Firemint, Fruit Ninja, Fruit Ninja: Puss in Boots, Halfbrick, iPhone, Real Racing 2, Rovio, Street Fighter II Collection)