Polar - The Learning App

Read. Write. Connect your thoughts. Remember.

Polar is a powerful knowledge tool that allows you to build a interlinked knowledge base from all your reading and notes.

With Polar you can highlight, comment on, and memorize anything you read in PDFs, EPUBs, web content. Polar also allows you to take notes. Both as stand-alone notes and in your files.

With your highlights and notes, you can build a non-linear knowledge base and find connections in what you read and write.

Once you've build your knowledge base, use the flashcard feature to create flashcards and review them. You can auto-generate flashcards from any note or text highlight using AI. With our spaced repetition algorithm, you can also automatically schedule review of information for efficient knowledge retention.

When it comes to reading, Polar allows you to organize and manage all your reading in one place. This includes organizing docs in folders or with tags, flagging docs, archiving, tracking reading progress, and work with detailed doc info (e.g., when reading scientific papers).

Finally, Polar also enables you track your reading, note taking, and learning with advanced statistics features.