Legend vs Leo Editor

Legend brings notes, documents, tasks, email, files, outlines, and projects into one productivity interface. Users organize work in Boards made up of Panes, which provide separate work areas and context switching. Panes can show Outline, grouped, List, or Calendar views, and filters can use prefixes, item contents, words, or tags. Writing features include Markdown, formatting hotkeys, backlinks, and mirrors that connect notes with tasks. The Agenda view sorts tasks by priority and date. Legend says it syncs in real time across devices and collaborators, works offline, and resolves changes after devices reconnect. Its privacy policy describes client-side encryption before item data syncs to Firebase, with optional password encryption. The Free plan costs nothing and includes 10 Panes, one plugin sync account, and unlimited documents and items. Basic costs $5 a month billed annually; Pro costs $9 a month billed annually. The Browser Pane is not available in the mobile app, though saved links can open in a browser.

Leo Editor is a free, open-source programmable editor, outliner, and knowledge base for arranging code, writing, and research in flexible outlines. It runs on Windows, macOS, Linux, through an API, and as self-hosted software. Cloned nodes allow one idea to appear in several outline locations while remaining synchronized. Navigation includes expanding and collapsing, hoisting, promoting, clones, and clickable links, with backlinks available for related sections. Users can automate workflows with Python scripts, commands, and plugins. Outlines export to HTML, MORE, Markdown, Org mode, reStructuredText, and Vim outline formats. Jupyter integration lets @jupytext nodes represent notebook cells and save changes back to .ipynb files. The leoBridge module exposes Leo content to Python host programs. A WebSocket server accepts JSON queries and changes, using password challenge-response authentication; TLS is optional. Leo requires Python 3.9 or later and is distributed under the MIT license.