Organize. Absorb. Optimize.
Lumen is a study app for students who feel behind. It holds your whole semester in one place, plans your day for you, brings material back before you forget it, and tells you where your grades actually stand.
High school and college students. Mostly the ones carrying more than they can hold in their head, who have tried a planner and a notes app and a reminders list and still open their laptop at 9pm with no idea what to start.
Lumen is built by one person, a pre-med student, because that was the problem he had. It is not a company with a support floor. It is one app, made carefully, by someone in the same week you are in.
Every good semester runs on the same three steps. Lumen runs them for you.
Everything you owe, in one place, ordered.
Your classes, assignments, exams and deadlines live in one list instead of six. Autopilot builds the plan for the day so the first decision of the evening is not what to work on.
Actually keep what you studied.
Recall Engine brings material back on the days you are about to forget it. Focus sessions, flashcards and notes sit next to the class they belong to. Upload a lecture and get notes back from it.
See where you actually stand.
Grade Guardian shows what each grade does to your average and what you need on what is left. Study insights show where your hours are going, honestly.
Free. No Card. Every new account gets a free month with everything in it. After that, Lumen stays free: every class, your to-do list, calendar, focus timer, habits, exams, grades, Recall and Study Science, with a syllabus scan and Lumie chat included in small amounts. Lumen Pro and Lumen Max add the AI tools and take the caps off. Prices are shown before you pay anything, payment is handled by Stripe, and you can cancel from Settings at any time and keep access until the end of the period you already paid for.
Lumen can connect to your Google Calendar so your classes, shifts and commitments sit alongside the work you owe, and so the plan it builds knows about the hours you do not actually have. This is optional. You are asked on Google's own screen first, and you can disconnect at any time from your Google account settings.
Lumen only asks for what that feature needs, uses it only to show and update those events, keeps no copy after you disconnect, and never uses it to train AI models. Lumen's use of information received from Google APIs follows the Google API Services User Data Policy, including its Limited Use requirements. The full detail is in the Privacy Policy.
It does not sell your data. It does not show ads. It does not use your schoolwork to train AI models. Essay Review tells you what to fix and will not write your essay for you.
Questions, or want your account deleted? Email hey@lumenbyjonah.com