Local markdown vs cloud block-reference. Based on product documentation, both note-taking apps are compared.
Obsidian's free local storage, plugin ecosystem, and speed make it the winner, though Roam's bi-directional linking is unmatched.
| Spec | Obsidian | Roam Research |
|---|---|---|
| Price | $0 (sync $8/mo) | $15/mo |
| Storage | Local markdown files | Cloud (proprietary) |
| Bi-directional Links | Yes (backlinks) | Excellent (block-level) |
| Plugins | 1,500+ community | None |
| Speed | Excellent (local) | Moderate (cloud) |
| Privacy | Excellent (offline) | Cloud-only |
Yes for personal use. The core app is free forever on all platforms. Only Obsidian Sync ($8/mo) and Obsidian Publish ($10/mo) are paid — both are optional, and you can use third-party sync (iCloud, Git) for free.
Roam links at the block level, so any paragraph or bullet can be embedded and referenced elsewhere. Obsidian links at the page level by default, though block references exist via plugins — Roam is still smoother for pure networked thought.
No. Roam is a cloud-only app and requires an internet connection. Obsidian works fully offline since notes are local markdown files.
Roam Research for fast bi-directional linking during literature review and daily notes. Obsidian if you want long-term ownership, plugins (Zotero integration), and free storage. Many academics use both.