Formstack is 16% cheaper
than BlockSurvey
$83/mo (Forms) vs BlockSurvey Premium at $99/mo — covering 22% of the 9 compared capabilities.
Same job. Way less money.
Comparison scenario
Every cheaper-than claim is tied to a defined scenario — never a bare list price.
1,000 responses/month, 1 seat, monthly billing · USD · prices as observed on official pricing pages.
Premium plan at $99/mo, the cheapest paid plan.
Forms: 996 USD/yearly.
BlockSurvey costs $99/mo on the Premium plan at 1,000 responses/month, 1 seat, monthly billing. We found 1 assessed alternative that is cheaper in this scenario; 0 of them cover at least 75% of the 9 compared capabilities.
Capability comparison
Formstack covers 22% of the 9 capabilities compared against BlockSurvey. ✓ native · ◐ via integration · ✗ not found.
| Capability | Formstack | BlockSurvey |
|---|---|---|
| Unlimited forms | ✗ | ✓ |
| Conditional logic | ✗ | ✓ |
| File uploads | ✗ | ✓ |
| Payment collection | ✓ | ✓ |
| Signature collection | ✓ | ✓ |
| Custom domain | ✗ | ✓ |
| Webhooks | ✗ | ✓ |
| Data export | ✗ | ✓ |
| SSO & SCIM provisioning | ✗ | ✓ |
What you give up
Capabilities BlockSurvey has that Formstack lacks.
- Unlimited forms — Create as many forms as you need without hitting a plan cap.Missing from Formstack.
- Conditional logic — Show or skip questions based on earlier answers.Missing from Formstack.
- File uploads — Let respondents attach files as part of their answers.Missing from Formstack.
- Custom domain — Serve forms on your own domain instead of the vendor's URL.Missing from Formstack.
- Webhooks — Send form submissions to other tools automatically as they arrive.Missing from Formstack.
- Data export — Export raw analytics data for use in other tools.Missing from Formstack.
- SSO & SCIM provisioning — Sign in through your company's SSO with SCIM provisioning.Missing from Formstack.
Price at your volume
The same comparison recomputed at three sizes. Plan caps change who is cheapest.
| Scenario | BlockSurvey | Formstack |
|---|---|---|
| 100 responses/month | $49/mo | $83/mo (not cheaper) (Forms) |
| 1,000 responses/month | $99/mo | $83/mo (Forms) |
| 10,000 responses/month | — | $83/mo (Forms) |
Plans & pricing, side by side
Advertised prices in USD as observed on the official pricing pages — per-seat and transaction-fee plans are marked.
| Forms | $83/mo (billed yearly) |
| Suite | $250/mo (billed yearly) |
| Enterprise | Contact sales |
| Free | Free |
| Standard | $49/mo |
| Premium | $99/mo |
| Team | $149/mo |
| Enterprise | Contact sales |
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Frequently asked
How much cheaper is Formstack than BlockSurvey?
16% cheaper in our scenario (1,000 responses/month, 1 seat, monthly billing): $83/mo on Forms vs $99/mo on Premium. That is $192 a year.
What does Formstack lack compared with BlockSurvey?
Unlimited forms, Conditional logic, File uploads, Custom domain, Webhooks, Data export, SSO & SCIM provisioning — 7 of the 9 compared capabilities.
When were these prices checked?
BlockSurvey: 2026-08-26; Formstack: 2026-09-07 — on the official pricing pages.
Sources & freshness
- https://blocksurvey.io/pricing (official_pricing, checked 2026-08-26)
- Formstack data last verified 2026-09-07