Motion Math: Hungry Guppy for iOS devices is a bright and visually appealing app for pre-schoolers that's just as educational as it is fun. Instead of solely focusing on number recognition to ...

Duolingo, best known for its whimsical owl and language-learning app, is working on a new product to add to its growing suite: a math app, according to CEO Luis von Ahn. The co-founder mentioned the ...