$3.99, iPad, iPhone, Android

Teaches: starter app, creativity, language, logic

$2.99, iPad, iPhone, Android, Kindle

Teaches: fine motor skills, math, counting up to four, 1 to 1 correspondence, airports, planes

$2.99, iPad, iPhone

Teaches: colors, spatial relations (front and behind), art

$2.99, iPad, iPhone, iPod Touch

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

$0.99, iPad, iPhone, iPod Touch (iOS 6.0 or later)

Teaches: symmetry, art, creativity

$2.99, iPad, Apple TV, iPhone

Teaches: language, spatial relations, causality, logic

$2.99, iPad, iPhone

Teaches: spatial relations, number, counting from 1 to 10, fine motor development, transportation

$2.99, iPad, iPhone, iPod Touch (iOS 6.0 or later)

Teaches: language, causality, letter recognition; English, German, French, Spanish, Italian, Russian and Brazilian Portuguese

$2.99, iPad

Teaches: causality, multi-touch,

$0.99, iPad (37MB)

Teaches: art, creativity, music, temporal relations

$2.99, iPad

Teaches: spatial relations, language, causality, directions (up, down, over)

$2.99, iPad, iPhone, Android

Teaches: causality, timing, fine motor

$0.99, iPad, iPhone, iPod Touch (iOS 5.0 or later)

Teaches: creativity, language

$2.99, iPad, Android

Teaches: logic, colors, shapes, sorting, matching, fine motor development

$2.99, iPhone, iPad, iPod Touch

Teaches: causality, music

$2.99, iPad

Teaches: letter recognition, language, art

$0.99, iPhone, iPad

Teaches: health, doctors, logic, matching

$2.99, iPad

Teaches: letter and word recognition, animal facts