$83, Smart Toy, iPad, iPhone, Android

Teaches: circuits, electricity, science, STEM, coding

$3.99, iPad, iPhone, Android

Teaches: math, logic, coding, directions, commands, problem solving

$2500, iPad, iPhone, Android, Windows, Mac OSX, Chrome

Teaches: robotics, programming

$300, iPad, iPhone, Android, Chrome, Windows, Mac OSX

Teaches: robotics, programming

$2000, iPad, Android, Chrome, Internet Site

Teaches: science, biology, weather, geology, astronomy

$200, iPad, iPhone, Android, Kindle

Teaches: coding, STEM, robotics

$200, iPad, Android

Teaches: robotics, programming

$15, iPad, iPhone, Android

Teaches: STEM, coding, programming

$160, iPad, Android

Teaches: creativity, programming, LEGO blocks

$200, iPad, iPhone, Android

Teaches: programming, circuits, logic, robots, electricity

$3.99, iPhone, iPad, Android, Kindle

Teaches: logic, memory, spatial relations, math

iPad, iPhone, Android, Kindle, Windows, Mac OSX, Nintendo DS, Nintendo 3DS, Vita, PlayStation 4, Wii, Wii U, Chrome, Xbox 360, Xbox One

Teaches: coding, programming

$3.99, iPad, iPhone, Android, Kindle

Teaches: problem solving, coding

iPad, Android

Teaches: creativity, 3D printing

$3.99, iPad, iPhone, Apple TV, Android

Teaches: science, time, geography, astronomy, planets, earth, sun, moon, the orbits

$160290, iPad, iPhone, Android, Windows, Mac OSX

Teaches: science, STEM, robotics, programming, coding

iPhone, Android

Teaches: current events, news, spatial relations

$50, Smart Toy, iPad, iPhone, Android

Teaches: STEM, electronics, maker

$2.99, iPad, iPhone, Apple TV, Android, Kindle

Teaches: science, the solar system, reading

$130, Smart Toy, Android, iPad, iPhone, iPod Touch (iOS 8.0 or later)

Teaches: programming, operating a remote control, robotics

$60, Windows, Mac OSX, Internet Site, Android, iPad

Teaches: programming, STEM

$2.99, iPad, iPhone, Android, Kindle

Teaches: logic

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

Teaches: science, astronomy, the solar system, planets, sizes, augmented reality

Android, Windows, Mac OSX, Chrome

Teaches: coding, programming, creativity

$50100, iPad, Android

Teaches: STEM, robotics, programming

$7.99, iPad, iPhone, Android, Kindle, Mac OSX, Internet Site

Teaches: coding, math, creativity

$2.99, iPad, iPhone, Android

Teaches: programming, math, coding

$2.99, iPad, iPhone, Android

Teaches: coding, programming, spatial relations

iPad, Android

Teaches: programming, logic, creativity, coding, art, math

iPad, iPhone, Android

Teaches: programming, coding

$350, iPad, iPhone, Android, Windows, Mac OSX

Teaches: math, logic, programming, creativity, STEM, robotics

$2.99, iPad, iPhone, Android

Teaches: astronomy