Built so you actually remember it.

Most studying doesn't stick. You read the chapter, you highlight the bits that seem important, you close the book, and a week later — when the exam comes — it's gone. That's not a discipline problem. It's how memory works when you only ever encounter the material one way: passively, by re-reading.

Decades of research in learning science point at a small set of techniques that actually move retention: active recall (closing the book and forcing yourself to retrieve), spaced practice (returning to material at growing intervals), and testing yourself on the specific ideas you'll be asked about. The catch: doing these on your own takes hours of setup per chapter. Most students never bother.

That's what Trequence is for. Drop in any textbook — an OpenStax title from the catalog, or a PDF you upload — and Trequence turns each chapter into the three things you actually need to study with:

• Summary notes — what matters in each section, written for retention. Not a recap. Not bullet points of every term in the book. The ideas you have to hold.
• Flashcards — every card derived from the summary notes so what you study lines up with what the chapter actually emphasized. Click to flip. Mix of terms, questions, and key facts.
• Practice exam — multiple-choice questions that test understanding, not just recall. Take the whole thing, submit, see what you got wrong and why, then loop back to the sections where your accuracy was weakest.

Everything is generated chapter-by-chapter on demand. As each section's notes finish writing, that section's cards and questions appear within a few seconds — so you can start studying section 1 while section 2 is still being prepared. No waiting for a full chapter to finish before you can read.

The whole point: stop confusing "I read it" with "I learned it." Trequence makes the active-recall study loop the default, not the thing you tell yourself you'll get to next week.

We built this for ourselves, for our friends in grad school, and for the cycle of cramming, forgetting, and re-cramming that nobody actually wants to live in. If that sounds like you, give it a try.