Legend vs Logseq

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.

Logseq is a free, open-source platform for knowledge management and collaboration, with tools for notes, tasks, and PDF annotation. It supports Markdown and Org-mode files, and connects information through block references, backlinks, linked references, and queries. Logseq supports note sharing and real-time collaboration, and lists Zotero as an integration. The product says users keep their data locally and can work fully on-device; offline access is listed. It is available on web, Windows, macOS, Linux, iOS, and Android. A plugin and theme ecosystem extends the app, with the homepage listing more than 150 plugins and at least 30 themes. Logseq Sync provides encrypted file syncing across devices. Its public-beta Sync service does not support multiple people using the same graph at once, and the maker warns that data loss can occur. The database version is in beta, while the new mobile app and real-time collaboration features are in alpha; the maker also warns of possible data loss for these. Personal use is free forever. Sync Backer costs $5 a month and Sync Sponsor costs $15 a month, each described as a monthly recurring donation.