Logseq vs Notesium
Logseq
logseq.comNotesium
notesium.comSide by side
| Figure | Logseq | Notesium |
|---|---|---|
| Price from | $5/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | — | Yes |
| Plans published | 3 | 1 |
| Spec score · Personal Knowledge Management Software | 8.9 (#4) | 8.7 (#7) |
| Integrations | Logseq provides a logseq:// protocol that lets third-party applications open graphs, pages, blocks, and quick-capture links. | Notesium provides a Vim/Neovim plugin that uses its CLI for note finding and preview. |
| Linking | Logseq supports block references, backlinks, linked references, and queries for connecting and resurfacing information. | Typing `[[` in the web editor opens a finder to insert a link, and saved notes are linked bidirectionally. |
| Supported platforms | web,windows,macos,linux,ios,android | The maker says Notesium runs locally on Linux, macOS, and Windows. |
| Purpose | Logseq is a privacy-first, open-source platform for knowledge management and collaboration. | Notesium is an indexer for bidirectionally linked notes designed for Zettelkasten and Evergreen note-taking. |
Plans
In their own words
Logseq
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.