Stop forgetting what you learned.

Learned something new about programming? Great! Make a flashcard.

Using the power of spaced repetition, CodeCode Ninja
helps you remember new programming knowledge
so when you need it — you know it.

It's simple: Learn something new in a course, book, or on the job. Put it in a flashcard. Practice regularly. And you will retain that knowledge.
Make your learning matter, and improve much faster as a developer.

What's spaced repetition?

This video from Osmosis, a learning product for doctors, explains the topic beautifully. CodeCode Ninja does just this, but for software developers.