Free chapter

Try one full chapter free — no sign-up.

The plan is a genuine full chapter — every mode, from Decode through Daily Revision — on one real flagship topic, so you can feel active recall working before you pay for anything. No account, no card, exactly like LexEdge's free sample.

The interactive sample chapter itself is still being built and will launch with the product. In the meantime, every mode is already previewable right here on the site — tap through the real flashcard, formula, and quiz examples on the Modes page to see exactly what a chapter feels like.