• Find

    Search, browse, or follow a Suggested badge. A heart is Serendipity — outside your usual path.

  • Learn

    A definition first, then the essentials, an example, and a check. Listen from the same page if you want it spoken.

  • Check

    Quizzes are their own path. They share the cards, not the lesson page.

  1. 01

    Find a subject

    On Explore, search if you know the name, or browse and filter by category. A Suggested badge is from what you have started. A heart is one serendipitous subject for the day. That is discovery — not yet learning.

    Open the catalog
  2. 02

    Read the definition, then the essentials

    Open a subject. The lesson names what the idea is, then keeps what matters, shows one concrete case, and offers a check. Summarized means useful — not thin. You do not need every lesson to say you understand the fundamentals.

  3. 03

    Listen from the same page

    Play, pause, and stop sit on the reading page. Listening is the same lesson, spoken. It is not a second course and not a separate mode.

  4. 04

    Check on Quizzes

    Practice is a different route. Same cards as the lessons, different address. You see how many questions there are and which one you are on. Lessons stay on Explore.

    Go to Quizzes
  5. 05

    Go deeper, then leave

    Go Deeper is optional. Sources show how the lesson was built. Originals take you to books, docs, and research. If you can continue there, Sumrized did its job.

  6. 06

    Your progress stays in this browser

    No account. Pickup, badges, streaks, and custom cards stay on this device. Clearing site data resets them. News is tech and AI summaries — not your study data.

Start with a subjectGo to Quizzes