kitio.aiDiagram AI vs ngSurvey
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Diagram AI starts at See pricing page and ngSurvey starts at See pricing page. 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
- DiagramLLM 1.0 model
- Diagram and chart generation
- Multimodal data reasoning
- On-premises deployment
- Pattern detection and recommendations
- Artemis AI survey designer
- Automated open-text analysis
- Real-time insights as responses arrive
- Drag-and-drop survey editor
- Email, WhatsApp and social distribution
- On-premise or cloud deployment
| Feature | Diagram AI | ngSurvey |
|---|---|---|
| Best for | Sovereign math-reasoning model that analyses data and draws diagrams | On-premise or cloud survey software with an AI analysis agent |
| Category | Data & analytics | Data & analytics |
| Pricing model | Paid | Paid |
| Starting price | See pricing page | See pricing page |
| Free plan | No | No |
| Made by | Diagram AI | Data Illusion |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Diagram AI starts at See pricing page and ngSurvey starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Diagram AI
- Data stays on your infrastructure
- Draws diagrams of its own reasoning
- Handles simulation and telemetry data
- No self-serve access or pricing
- Main case studies are in aerospace
- Requires warehouse integration work
ngSurvey
- Can be self-hosted for data control
- AI analysis of free-text answers
- Several distribution channels
- No public pricing on the site
- Aimed at enterprises rather than individuals
- Sales call needed for most setups
Which one should you choose?
Choose Diagram AI if you want:
- Data stays on your infrastructure
- Draws diagrams of its own reasoning
- Handles simulation and telemetry data
Watch out: no self-serve access or pricing.
Choose ngSurvey if you want:
- Can be self-hosted for data control
- AI analysis of free-text answers
- Several distribution channels
Watch out: no public pricing on the site.
Diagram AI vs ngSurvey FAQ
What is the difference between Diagram AI and ngSurvey?
Diagram AI: Sovereign math-reasoning model that analyses data and draws diagrams. ngSurvey: On-premise or cloud survey software with an AI analysis agent. Both are data & analytics tools.
Is Diagram AI or ngSurvey cheaper?
Diagram AI starts at See pricing page and ngSurvey starts at See pricing page. Check both pricing pages for current plans.
Do Diagram AI and ngSurvey have free plans?
Diagram AI: No. ngSurvey: No.
Who makes Diagram AI?
Diagram AI is made by Diagram AI.
Who makes ngSurvey?
ngSurvey is made by Data Illusion.
Which should I choose, Diagram AI or ngSurvey?
Choose Diagram AI if you value data stays on your infrastructure and draws diagrams of its own reasoning. Choose ngSurvey if you value can be self-hosted for data control and ai analysis of free-text answers.