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Record ideas by voice, then send usable notes to your existing apps

Write with a stylus in flexible notebooks that can also hold and annotate PDFs.

Experiment with financial language models, sentiment and forecasts

Organize notes, lists, projects, and ideas in tagged bundles with offline editing and sync.

A multi-format notebook for handwriting, PDFs, voice notes, and study documents.

Keep reading notes, quotations, analysis, and source details beside the writing they inform.

An open-source iPad notebook for Apple Pencil writing and PDF markup.

A connected-notes app with a knowledge graph, visual maps, transcription, and an optional AI agent.

Local Markdown notebooks with backlinks, search, and optional self-hosted encrypted sync.

Build reusable implicit models and prepare geometry for engineering tools

Write and annotate handwritten notes on Android with page layouts, linked notes, and PDF tools.

An open-source notebook for multimedia notes, attachments, and personal reference material.

Choose scientific colour maps to match the structure of your data.

Write or sketch by hand, then convert, search, and organize the result.

Connect, transform and store business data before sharing dashboards and reports.

Web data API to search, scrape and interact with the web for AI agents

AI agents that automate browser workflows on any website.

AI spreadsheet that connects to databases and apps, answers questions in plain English, and builds charts and models.

Cloud service that solves CAPTCHAs through an API or browser extensions.

A handwriting notebook that links notes and searches handwriting, Markdown, and PDF text.

Collect notes, links, tasks, and files as visual cards on walls with several views and sharing options.

A browser-installable notes app that stores Markdown files in the user’s Google Drive or Dropbox.

Model financial instruments with an inspectable quantitative library

An open-source notebook with a freeform canvas, handwriting, Markdown, and local files.