| Feature | Zo | Obsidian |
|---|---|---|
| What it is | Always-on cloud vault with AI, sync, automation, and hosting built in | Local-first markdown note editor with plugins |
| Persistence | Always on, 24/7; files and config persist permanently in the cloud | Local vault on your device |
| Hosting | Full hosting on zo.space (sites, APIs, services) | Publish add-on ($8/mo) |
| Sync | Built-in bidirectional sync included | Obsidian Sync ($8/mo) or third-party |
| AI capabilities | Full AI with multiple models, code execution, and agents | Via community plugins |
| File format | Standard files (markdown, JSON, SQLite) on a cloud server | Markdown files (local) |
| Scheduled tasks | Autonomous agents on any schedule | |
| Pricing | From $18/mo (sync and AI included) | Free (Sync $8/mo, Publish $8/mo) |
Obsidian is beloved by knowledge workers for good reason: it stores your notes as plain markdown files in a local vault. No proprietary formats. No vendor lock-in. Your notes are just files.
Zo shares this philosophy. But where Obsidian is a local-first note editor, Zo is an always-on cloud computer with AI. They're different tools, and they work beautifully together.
Obsidian's Strengths
Obsidian does several things exceptionally well:
- Markdown-native: Everything is stored as
.mdfiles you can open with any editor - Local-first: Your vault lives on your device, not someone else's server
- Backlinks and graph view: See how your notes connect
- Extensible: Hundreds of community plugins for almost any workflow
- Privacy: Your data never leaves your device (unless you choose to sync)
For focused writing and note-taking, Obsidian is excellent.
The Sync Question
Obsidian's local-first design means you need a solution for:
- Accessing notes from multiple devices
- Backing up your vault
- Sharing notes with others
Obsidian offers several sync options:
- Obsidian Sync: $8/month for end-to-end encrypted sync
- iCloud/Dropbox/Google Drive: Free but can have conflicts
- Git: Free but requires technical setup
- Syncthing: Free, decentralized, but requires configuration
Each has trade-offs between cost, reliability, and complexity.
Zo as Your Obsidian Vault
Here's an interesting option: use Zo as the home for your Obsidian vault.
With Zo's local sync, your files sync bidirectionally between your local machine and your Zo server. Point Obsidian at the synced folder, and you have:
- Your vault on a server you control: Not a third-party sync service
- Access from anywhere: Through Zo's web interface or synced locally
- AI that understands your notes: Ask Zo questions about your vault
- Automation capabilities: Build agents that work with your notes
- 100GB included storage: Plenty of room for notes, attachments, and more
Obsidian becomes your writing interface. Zo becomes your always-on vault with AI superpowers.
The Best of Both Worlds
You don't have to choose. A common setup:
- Vault on Zo: Store your notes on your Zo server
- Sync locally: Use Zo's sync to mirror to your laptop
- Edit in Obsidian: Use Obsidian for focused writing
- Ask Zo questions: Query your vault with AI
- Build automations: Create agents that work with your notes
- Build apps: Build interactive views on top of your notes
Obsidian handles the editing experience. Zo handles sync, AI, automation, and web hosting.
For Obsidian Power Users
If you're deep into the Obsidian ecosystem, Zo complements rather than replaces your setup:
- Keep editing your vault using Obsidian and your favorite plugins
- Add an AI that can read and search across your entire vault
- Create AI agents that automate research and organization tasks working with your notes
- Build and host sites that integrate context from your notes
- Add a backup location you control
"I'm so excited about Zo, I've dropped all work on the floor and am building a script to import all my X bookmarks. It seems like the exact Obsidian-in-the-cloud + Claude Code + automation product that I've been looking for."
- Sync included
- AI included
- 100GB storage
- Full server capabilities
A cloud computer with sync and AI
Obsidian
Personal use
- Sync: $8/mo add-on
- Publish: $8/mo add-on
- Commercial license: $50/year
A local-first note editor
Choose Obsidian if you want:
- Want a polished local-first writing experience
- Love the plugin ecosystem and graph view
- Prefer editing entirely offline
- Don't need AI, automation, or hosting
Choose Zo if you want:
- Want your vault in the cloud with AI superpowers
- Need sync included without extra cost
- Want to build automations that work with your notes
- Need hosting for sites or services
- Want to consolidate sync, AI, and computing into one subscription