Rui CarmoSome note-taking apps I’m keeping track of, since my site is essentially a folder tree with Markdown files and some of these may yet replace/complement it somehow:
| Platform | Date | Link | Notes |
|---|---|---|---|
| Cross-platform | 2019 | Simplenote | Doesn’t seem to allow for cross-links or attachments |
| Electron | 2020 | Obsidian | Zettelkasten, no calendar integrations |
| Web | 2026 | Open Knowledge | Open-source, AI-native Markdown editor and LLM wiki / second brain (MDX, agent skills) |
| macOS/iOS | 2019 | Agenda | date-focused, excellent integration on iOS/macOS |
| 2020 | Noteplan 3 | Uses plain Markdown as storage |