kitio.aiDeta Surf vs Open Voice OS
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Deta Surf starts at Free and Open Voice OS starts at Free. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- 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
- Voice-controlled interfaces
- Customizable UI
- Runs on single-board computers
- Community-driven development
- Privacy focus
| Feature | Deta Surf | Open Voice OS |
|---|---|---|
| Best for | Open-source AI notebook that pulls the web, files and notes together | Open-source voice assistant platform for smart speakers and devices |
| Category | Productivity | Productivity |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | Deta | OpenVoiceOS community |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
Deta Surf starts at Free and Open Voice OS starts at Free. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
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
Open Voice OS
- Free and open source
- Privacy-focused design
- Runs on small hardware
- Requires technical setup
- Experimental features at the core
- Community support rather than a vendor
Which one should you choose?
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.
Choose Open Voice OS if you want:
- Free and open source
- Privacy-focused design
- Runs on small hardware
Watch out: requires technical setup.
Deta Surf vs Open Voice OS FAQ
What is the difference between Deta Surf and Open Voice OS?
Deta Surf: Open-source AI notebook that pulls the web, files and notes together. Open Voice OS: Open-source voice assistant platform for smart speakers and devices. Both are productivity tools.
Is Deta Surf or Open Voice OS cheaper?
Deta Surf starts at Free and Open Voice OS starts at Free. Check both pricing pages for current plans.
Do Deta Surf and Open Voice OS have free plans?
Deta Surf: Yes, fully free. Open Voice OS: Yes, fully free.
Who makes Deta Surf?
Deta Surf is made by Deta.
Who makes Open Voice OS?
Open Voice OS is made by OpenVoiceOS community.
Which should I choose, Deta Surf or Open Voice OS?
Choose Deta Surf if you value data stored on your device and open-source code. Choose Open Voice OS if you value free and open source and privacy-focused design.