| Price from | A$22/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 | — |
| API | — | Yes |
| Plans published | 4 | 1 |
| Spec score · Personal Knowledge Management Software | 8.5 (#10) | 8.7 (#7) |
| Graph | Neoma indexes note links and displays them as a graph. | An interactive force graph visualizes note relationships and supports search filtering, preview, zoom, and layout adjustments. |
| License | The web app is free and open source under AGPL-3.0-or-later; desktop and App Store editions are proprietary. | The repository identifies the project as MIT licensed. |
| Supported platforms | web,macOS,Windows,Linux,iOS | The maker says Notesium runs locally on Linux, macOS, and Windows. |
| Search | The site describes search as a local index using MiniSearch and a Web Worker. | The CLI, Finder and web interface provide full-text search across notes. |
| Security | The homepage says the app's Content Security Policy has no remote host in connect-src, preventing the app from sending notes elsewhere. | The installation guide instructs users to verify downloaded binaries against published SHA-256 checksums. |