$8, iPad, Android, iPhone

Teaches: counting, early learning, math, logic, fine motor skills

$2.99, iPad, iPhone, iPod Touch

Teaches: music, rhythm, melody, math, counting, computer sequencing

$2.99, iPad, iPhone, iPod Touch (iOS 7 required)

Teaches: early reading, math, counting, matching, symmetry, cause and effect

$1.99, iPad, iPhone, iPod Touch (iOS 8.0 or later)

Teaches: math, creativity, problem solving, logic, gears, physics, physical science, torque

$60, Xbox One, Xbox 360, PlayStation 4, PlayStation 3, Vita, Wii U, Nintendo 3DS

Teaches: logic, co-op play, math, reasoning