Apps with 'Interactive exercices' feature

Khan Academy is not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere.

Feeel is an open-source Android app for doing simple at-home exercises. It holds the acclaimed full body scientific 7-minute workout regime and allows creating custom workouts as well.

IXL is an immersive K-12 learning experience that provides comprehensive, standards-aligned content for math, language arts, science, and social studies

Sworkit allows you to customize and play Personalized Video Workouts:.