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.
Khan Academy vs StudyPug Online Math Help opinions
free & contains all subjects
its free, content is well explained.
Pocket Scholar is a science-learning platform centered around breaking down complicated science topics into smaller chunks that makes them easier to understand. We believe in a future where everyone has access to high quality, college level content that they actually can...