Formstack is an alternative
to Fillout
$99/mo (Forms) vs Fillout Starter at $15/mo — covering 13% of the 6 compared capabilities.
Same job. Compare the fees.
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.
Starter plan at $15/mo, the cheapest paid plan.
Forms: 99 USD/monthly.
Fillout costs $15/mo on the Starter plan at 1,000 responses/month, 1 seat, monthly billing. Formstack costs $99/mo (Forms plan), which is not cheaper than Fillout Starter at $15/mo in this scenario.
Capability comparison
Formstack covers 13% of the 6 capabilities compared against Fillout. ✓ native · ◐ via integration · ✗ not found.
| Capability | Formstack | Fillout |
|---|---|---|
| Unlimited forms | ✗ | ✓ |
| Conditional logic | ✗ | ✓ |
| File uploads | ✗ | ✓ |
| Payment collection | ✓ | ✓ |
| Webhooks | ✗ | ✓ |
| Signature collection | ↑ Suite | ✓ |
What you give up
Capabilities Fillout 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.
- Webhooks — Send form submissions to other tools automatically as they arrive.Missing from Formstack.
- Signature collection — Collect legally binding signatures within a form.Missing from Formstack.
Price at your volume
The same comparison recomputed at three sizes. Plan caps change who is cheapest.
| Usage | Fillout | Formstack |
|---|---|---|
| 100 responses/month | $15/moStarter | $99/mocosts moreForms |
| 1,000 responses/month | $15/moStarter | $99/mocosts moreForms |
| 10,000 responses/month | $75/moBusiness | $99/mocosts moreForms |
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 | $99/mo |
| Suite | $299/mo |
| Enterprise | Contact sales |
| Free | Free |
| Starter | $15/mo |
| Pro | $40/mo |
| Business | $75/mo |
Frequently asked
What does Formstack lack compared with Fillout?
Unlimited forms, Unlimited submissions, Conditional logic, File uploads, Webhooks, Signature collection, Custom domain — 7 of the 6 compared capabilities.
When were these prices checked?
Fillout: 2026-10-26; Formstack: 2026-10-26 — on the official pricing pages.
Who switched
Anonymous: no account, no email, no IP stored. Reports are shown once a switch has 3 or more and never change ranking or order — alternatives are computed from prices and capabilities only.
Sources & freshness
- https://www.fillout.com/pricing (official_pricing, checked 2026-10-26)
- Formstack data last verified 2026-10-26