Khan Academy Kids

Khan Academy Kids is the most generous educational app ever made—completely free with no ads, no subscriptions, and no in-app purchases. Covering reading, math, social-emotional learning, and creative expression for ages 2-8, its adaptive learning engine adjusts difficulty based on each child's performance, tested on over 1 million active users. Sal Khan's mission starts here, offering a structured path that rivals Duolingo ABC's phonics focus by integrating social-emotional skills.