[iOS] Whoowasit? Free for The 1st Time (Was $6.99) @ iTunes

Whoowasit? was children's game of the year in 2008. Seems to have won a few awards (especially in Germany) up until 2012, for being the best App in the game/ family category. Reviews on the game seem to praise the game as being great for kids. Fairly large download at 472Mb.

As the Germans would say, dis spiele vill get ze kinders sinking

The king’s castle is in danger! The evil wizard has been seen near the kingdom. Only the king’s magical ring can protect the castle, but it has disappeared. Can you find the thief?

The children of the castle are the last hope. The animals have seen the thief: they want to help to catch him in order to get back the ring, and only the children can talk to them and understand them. A sharp eye and deduction skills are needed to solve this puzzle, as only together can the children track down the thief!
Careful thinking, strong team play and working closely together are necessary for the small detectives to reach their goal. But watch out for the ghost! Can the kingdom be saved on time from the evil magician?