Cost: $4.99 Primary, Kindergarten, 1st Grade, 2nd Grade, 3rd Grade
This app also has a free version, but the free version can only have 2 players. It might be a good option to download first as a preview. These games include lower-case and upper-case Alphabet Matching, Dolch Sight Words for 1st through 3rd grades, Addition, Subtraction, Multiplication, Division, Telling the Time, Currency, Countries and Flags, Shapes, Animals, Foods and more.
It allows 4 kids to play on one iPad. A picture or word is displayed in the center and they have to find the matching word and select it as fast as they can. There are preset word banks and math problems you can use or you can even customize it.