Limenote: AI Notes & PDFs

Circle anything on the page and ask — the answer lands beside your own handwriting. Whiteboards, notes and PDFs, synced to iPad, iPhone and the web.

Limenote is a notebook that lives in your account, not on one device. Write by hand on iPad, pick the same page up on your phone, and open it again in any browser. Whiteboards, paper notes, Markdown and PDFs all sit in the same workspace.

Then circle anything on the page and ask. The answer arrives beside your own handwriting, and it stays with the document.

A REAL NOTEBOOK FIRST • Apple Pencil writes while your fingers pan, pinch and grab • A Metal renderer keeps every stroke crisp at any zoom • A precision eraser that trims exactly what it touches • Lasso a group and move or resize it as one • Stickies, shapes, arrows, text and images on a canvas that never runs out

FOUR KINDS OF PAGE, ONE PLACE • Whiteboards — plan on an endless canvas • Notes — paper pages for lectures and problem sets • Markdown — typed notes with headings, tables and lists • PDFs — read and write straight on the page • Scans — photograph a textbook page and keep it as a document

TABS AND SPLIT VIEW ON iPAD Read a paper on the left and sketch beside it on the right. Each half keeps its own tabs, and both save as you write.

CIRCLE ANYTHING. ASK. Lasso a figure, a table, a paragraph or your own working, and Limenote offers the next step that fits: explain this chart, give me a hint, check my work, make a quiz, find the action items, translate it. Every answer is saved with the document, so you can reopen it weeks later.

It reads scans with no text layer, too. Tables come out as rows and maths as LaTeX.

BRING YOUR OWN AI KEY Add a key from Anthropic, OpenAI, Google Gemini or xAI and choose the model. Your key is stored encrypted and used only to make the request you asked for. The notebook works perfectly well without one.

SAVED AS YOU WRITE Your pages live in your Limenote account, so losing a device does not lose your work. Documents you have opened stay on the device and open without a connection, and edits made offline sync the moment you are back.

YOUR PAGES, YOUR KEY A question sends only the region you selected to the provider you chose. We do not sell your data, and we do not train models on your pages.

Limenote on the web: app.limenote.me