Every module, all in one place.
Each module is built to do one job well, and they all share your source material — so the answers are grounded, not made up.
Notebooks
One subject, every source, source-grounded chat.
- Drop in PDFs (up to 10 MB), DOCX, photos, YouTube videos (up to 20 min), and pasted text.
- Image OCR with Gemini Flash. YouTube transcripts also save as a Note for re-reading.
- Source-grounded chat panel cites which document each claim came from.
- When YouTube blocks the public transcript, Lumen falls back to Gemini transcribing the audio.
Decks
Spaced repetition with SM-2.
- AI generates 12-card decks from your notebook in seconds.
- SM-2 algorithm schedules the next review based on how well you knew each card.
- Per-card grade 0–5 controls when the card comes back.
Smart Quiz · per notebook
Gamified, adaptive, partial-credit ready.
- 20 questions in 6 batches (4, 4, 4, 4, 2, 2). Difficulty climbs with your XP.
- Mix MCQ + short answer. Short answers grade with quartile partial credit (¼ / ½ / ¾ / full).
- Optional time limit (1–60 min). Pauses while batches load — no penalty for AI latency.
- Available right inside each notebook's Practice tab AND from the global Practice page.
Exam mode · per folder
A whole subject's notebooks, one big test.
- Group notebooks into folders (drag-and-drop, coloured side-tabs).
- Click Start Exam on any folder → questions are drawn equally across every notebook in it.
- Same Smart-Quiz mechanics: timer, partial credit, batched difficulty.
- Per-notebook weight adjustment is queued for the next release.
Streams · level up your study
Knight, Magician, Doctor, Merchant, Scientist, Governor.
- Pick a path that fits how you study. 10 levels per stream — L1 Apprentice → L10 Forbes #1, Lionheart, Nobel Laureate, Merlin, Statesman, Grand Wizard.
- Aggressive XP curve: L10 takes months. The badge next to your name is a real flex.
- Every scoreable action earns XP. Big +N XP toast pops every time, plus a centre-topbar bar shows your progress to the next level.
- Switch streams any time — costs 50% of your XP, with a typed-confirm dialog so you can't mis-click into a reset.
Tutor (Socratic)
Asks first, explains second.
- Source-grounded — won't drift into hallucinated 'general knowledge'.
- Pitches every question + explanation at your year level (Year 5 vs Postgrad).
- Free-flow chat; the tutor keeps a Socratic ladder going until you've reasoned the answer out.
Paper Grader
Auto-extracts the rubric. Then grades against it.
- Drop your essay (PDF / DOCX / pasted text) + the assignment brief.
- Auto-extracts the rubric from the brief — explicit OR inferred.
- Per-criterion score with direct quotes from your essay as evidence.
- Critical, kind, and actionable. Pitched at your year level.
Notes
One-click summary + cheat sheet.
- Source-grounded markdown that you can edit and reference offline.
- YouTube transcripts auto-save here so you can re-read them between Smart Quizzes.
Podcasts
Two-host audio walkthroughs.
- Lumen writes a two-host script + synthesises it via OpenAI's TTS.
- Useful when you want to study on the bus instead of staring at a screen.
Leaderboards
Your effort, ranked against your peers.
- Scope: my school / my country / global. Default: school × last 7 days.
- Privacy-respecting: shows first name + last initial + year (e.g. "Daniel C. · Year 9"). Never your full last name.
- School Leaders can set a friendly nickname ("Churchie" for Brisbane Boys' College) that shows for everyone.
- Stream badge + streak flame next to every name. Opt out anytime in Settings.
School Forum
WhatsApp-style chat with your classmates.
- Each school gets its own private forum, surfaced under the leaderboard.
- Bubble fill matches the author's stream colour at their level — instant visual differentiation.
- Reply quotation, pinned posts, soft delete (own posts within 1 hour, or admin/School Leader anytime).
- Members can post 3 times a day, must do at least one quiz/review first; School Leaders post unlimited and pin announcements. Posts visible for 90 days then auto-archive.
Age-aware explanations
Pitched right, every time.
- Tell Lumen your year level + age range at sign-up. We thread it into every AI prompt.
- Year 5 gets concrete examples + simple language. Postgrad Y3 gets formal vocabulary + abstract framing.
- Same source material, two completely different reading experiences.
Boost your study right now!
Free during beta. No credit card. Designed by students, for students.