Primer is a free educational app that allows users to learn at their own pace from anywhere. Developed by Human Program, Primer offers a wide range of lessons on hundreds of important topics. The app utilizes an advanced adaptive learning algorithm to assess the user's current knowledge and recommend new topics for study.

With Primer, users have the flexibility to learn from anywhere and in almost any language. They can choose a curriculum for the subject they are most interested in studying. The adaptive learning feature determines when the user is ready to move on to a new topic, ensuring a personalized and efficient learning experience.

One of the key advantages of Primer is its automatic review of past topics, which helps improve long-term memory retention. The app also provides a library with a vast selection of topics to choose from, ensuring that users can find the information they need.

Primer is not only suitable for students who are just starting out, but also for adult learners who wish to refresh their knowledge on specific subjects. It is important to note that Primer is maintained by a small but dedicated international team. Users are encouraged to provide feedback, as the team is committed to continuously improving the app in future updates.