Open a session
Start with a question, a class, or a topic you need to understand.
Lunar es una app para estudiar con inteligencia artificial, disponible en bambalunar.app y pensada para estudiantes universitarios, de secundaria, opositores y autodidactas que quieren entender mejor sus clases, organizar apuntes y preparar exámenes.
La IA se adapta a tu nivel sin preguntarlo: elige un punto de partida razonable, explica en el mismo turno y recalibra según tu reacción. Mientras conversás, registra anclas de lo importante — conceptos, mecanismos, procedimientos, errores frecuentes — con estado de dominio, y construye un mapa de estudio con tu punto de partida.
También podés subir PDFs y documentos, y activar búsqueda web con fuentes citadas. Tu perfil persiste entre sesiones. Spaces, la capa para organizar áreas, materias y sesiones, está en construcción.
Lunar es una herramienta de estudio gratuita para empezar, sin tarjeta de crédito: una alternativa real a un tutor para preparar exámenes, entender apuntes y repasar una sesión con sus anclas, mapa y fuentes.
Not just another chat. Lunar picks where to start, checks what you understood as you go, and keeps track of where you stand on each concept — from one session to the next.
A chat answers and the conversation ends. Lunar answers, records what matters, and connects your questions — so a session leaves you with something you can use again.
Spaces are containers for ongoing study: a broad area, subjects underneath, and sessions at the bottom. Every Space has its own knowledge tree, merging the one from all of its sessions, plus its own shared memory. Each session keeps its own tree; MicroChats do not become permanent nodes.
The direction for Spaces is simple: a degree, course, or broad area on top; your subjects and sessions underneath.
We are building that organization so learning does not stay scattered across isolated conversations.
A Space is a broad area — a degree, a course, a project — that holds your subjects and, inside each one, the sessions you studied. It is not just a folder: every Space has its own knowledge tree and its own shared memory, so a new session starts knowing what you already covered in the others.
Each session keeps its own objective and topics; the Space keeps what ties them together. That is why the Space tree already has history when you open a new session.
About you
How you like explanations, what you like, what you do.
Per Space
Purpose and what is shared across sessions.
Per session
Objective, topics, and progress in that session.
Hand it even your university syllabus and Lunar triages it: it keeps what is testable and prerequisite, marks the optional, and compacts what you already master. A visible plan of topics and subtopics that advances only when you truly understand — and you edit it by asking the AI, from the chat or with a pencil.
Every session you finish feeds a graph: Lunar extracts the concepts, dedupes the ones it already knew, and links them with typed relations. Inside a Space the tree merges all of its sessions; inside a chat it covers that conversation.
WHAT THE TREE DOES
HOW YOU OPEN IT
From a Space, the tree covers all of its sessions. From a chat, it covers only that session. Open a node and use "View in chat" to jump to where it was explained; the expand button opens it full screen.
While you study, the AI builds your continuity map: it picks the points worth keeping from 12 types (concept, formula, common mistake, decision…), organizes them as hierarchy or sequence depending on the case, marks where you are, and notes where you started. Not a summary: the visual memory of your learning.
Reusable atomic units: concepts, mechanisms, examples, mistakes, and applications that get recorded and can be reviewed on their own.
Web search sources are cited and clickable.
Open a side panel to ask focused questions about a concept without losing the thread of the main session.
Upload PDFs, documents, or text and use them as context to understand the topic better.
Start without a credit card. No commitment.

A session moves in three beats: ask, verify, and go deeper.
Start with a question, a class, or a topic you need to understand.
Lunar revises what was already explained with short checks on material you have seen — without locking you into a level question. Upload documents when you need them: Lunar searches the web on its own when the question calls for it.
Review your Anchors and open a side MicroChat to explore a concept without losing the session.
Everything included from day one. The only thing that changes is how much you can use each month, measured in USD so there are no surprises.
Coming soon: Escuelas and Equipos. · contact@bambalunar.app
Lunar is in invite-only early access: you request access with your Google account and we enable it, no card required. Pro billing is not open yet; for now we turn it on by hand if you need it.
A chat answers you. Lunar leaves you the structure of what you learned. Invite-only early access.
No card required · Invite-only access