Company Danya Samuel created these great apps:
Kids Math Addition Level 1, Kids Math Addition Level 2, Kids Math Addition Level 3, Kids Math Addition Level 4, Kids Math Subtraction Level 1, Kids Math Subtraction Level 2, Kids Math Subtraction Level 3, Kids Math Subtraction Level 4, Kids Math Addition Subtraction Level 1, Kids Math Addition Subtraction Level 2, Kids Math Addition Subtraction Level 3, Kids Math Addition Subtraction Level 4, Kids Math Multiplication Level 1, Kids Math Division Level 1, Kids Math Multiplication Level 2, Shapes4Kids, and others..