kitio.aiAFFiNE vs Deta Surf
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Deta Surf is completely free, while AFFiNE is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Docs and whiteboards
- Databases
- AFFiNE AI
- Local-first storage
- Self-hosting
- Notebooks for web and files
- Chat with videos and PDFs
- Interactive graphs and applets
- Bring your own LLM key
- Local data storage
- Open-source core
| Feature | AFFiNE | Deta Surf |
|---|---|---|
| Best for | Open-source workspace mixing docs, whiteboards and databases with AI | Open-source AI notebook that pulls the web, files and notes together |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Free |
| Starting price | $6.75/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Toeverything | Deta |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
Deta Surf is completely free, while AFFiNE is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
FOSS + Cloud Basic
Free
- Local editor, MIT license
- Basic cloud sync
Pro
$6.75/mo
- 100 GB cloud storage
- Up to 10 members per workspace
- 30-day version history
Team
$10/mo
- Per seat
- 100 GB + 20 GB per seat storage
- Multiple admin roles
- Priority support
Believer
$499.99 one-time
- Lifetime personal usage
- 1TB cloud storage
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
AFFiNE
- Open source and self-hostable
- Docs and whiteboard in one
- Local-first data
- Less mature than Notion
- AI is a paid add-on
Deta Surf
- Data stored on your device
- Open-source code
- Works with your own or local models
- Beta rework still pending
- Needs your own model keys
- Early-stage software
Which one should you choose?
Choose AFFiNE if you want:
- Open source and self-hostable
- Docs and whiteboard in one
- Local-first data
Watch out: less mature than notion.
Choose Deta Surf if you want:
- Data stored on your device
- Open-source code
- Works with your own or local models
Watch out: beta rework still pending.
AFFiNE vs Deta Surf FAQ
What is the difference between AFFiNE and Deta Surf?
AFFiNE: Open-source workspace mixing docs, whiteboards and databases with AI. Deta Surf: Open-source AI notebook that pulls the web, files and notes together. Both are productivity tools.
Is AFFiNE or Deta Surf cheaper?
Deta Surf is completely free, while AFFiNE is freemium.
Do AFFiNE and Deta Surf have free plans?
AFFiNE: Yes. Deta Surf: Yes, fully free.
Who makes AFFiNE?
AFFiNE is made by Toeverything.
Who makes Deta Surf?
Deta Surf is made by Deta.
Which should I choose, AFFiNE or Deta Surf?
Choose AFFiNE if you value open source and self-hostable and docs and whiteboard in one. Choose Deta Surf if you value data stored on your device and open-source code.