kitio.aiSyntho vs BlockSurvey
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Syntho starts at See pricing page and BlockSurvey starts at $49/mo. 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
- AI-generated synthetic data
- Data masking
- Sensitivity scanner
- Database subsetting
- Foreign key handling
- REST API
- End-to-end encrypted responses
- AI survey creation
- Conversational AI surveys
- AI thematic analysis
- Longitudinal analysis
- Survey MCP server
| Feature | Syntho | BlockSurvey |
|---|---|---|
| Best for | Synthetic test data platform with masking and AI-generated data | Encrypted survey tool with AI survey design and response analysis |
| Category | Data & analytics | Data & analytics |
| Pricing model | Paid | Freemium |
| Starting price | See pricing page | $49/mo |
| Free plan | No | Yes |
| Made by | Syntho | BlockSurvey |
| Based in | Netherlands | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Syntho starts at See pricing page and BlockSurvey starts at $49/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
5 plans
Free
Free
- Basic surveys
- Encrypted responses
Standard
$49/mo
- Unlimited surveys
- 6,000 responses per year
- AI survey creation
- Spam prevention
Premium
$99/mo
- 24,000 responses per year
- AI follow-up questions
- Custom branding
Team
$149/mo
- Up to 5 users
- 60,000 responses per year
- AI data analysis
- NPS, CSAT and CES
Enterprise
Contact sales
- Custom quotas
- Demo and onboarding
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
Syntho
- Several generation methods in one tool
- Keeps relational integrity across tables
- No consumption limits on plans
- No public prices
- Demo needed before buying
- Built for teams with database skills
BlockSurvey
- Responses encrypted end to end
- AI handles design and analysis
- Works from Claude and ChatGPT
- Free plan to start
- Annual response caps on each plan
- AI analysis reserved for the Team plan
- Branding requires Premium
Which one should you choose?
Choose Syntho if you want:
- Several generation methods in one tool
- Keeps relational integrity across tables
- No consumption limits on plans
Watch out: no public prices.
Choose BlockSurvey if you want:
- Responses encrypted end to end
- AI handles design and analysis
- Works from Claude and ChatGPT
Watch out: annual response caps on each plan.
Syntho vs BlockSurvey FAQ
What is the difference between Syntho and BlockSurvey?
Syntho: Synthetic test data platform with masking and AI-generated data. BlockSurvey: Encrypted survey tool with AI survey design and response analysis. Both are data & analytics tools.
Is Syntho or BlockSurvey cheaper?
Syntho starts at See pricing page and BlockSurvey starts at $49/mo. Check both pricing pages for current plans.
Do Syntho and BlockSurvey have free plans?
Syntho: No. BlockSurvey: Yes.
Who makes Syntho?
Syntho is made by Syntho, based in Netherlands.
Who makes BlockSurvey?
BlockSurvey is made by BlockSurvey, based in United States.
Which should I choose, Syntho or BlockSurvey?
Choose Syntho if you value several generation methods in one tool and keeps relational integrity across tables. Choose BlockSurvey if you value responses encrypted end to end and ai handles design and analysis.