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SPECIFICTION
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Formidable

formidable.software

From $15/mo Free plan WebAPI
Visit formidable.software
Spec score 8.2 #16 of 25 in Form API Software

What it is

Formidable is a cloud form builder that generates forms from natural-language descriptions. Conditional logic can show, hide, or require fields based on answers and expressions. Computed fields evaluate in real time for weighted scores, boolean outcomes, and formatted outputs. Business rules can produce approve, reject, or escalation outcomes. Users can publish hosted forms, share links, embed forms in an iframe, and receive submissions through webhooks. A JSON REST API and the open-source Forma React library support custom interfaces. Account, form, and submission data are stored in the European Union. Generation prompts may be processed by Anthropic, while submission and respondent data are not sent to AI services. The Free plan costs nothing and includes one published form, 1,000 submissions per month, conditional logic, computed fields, webhooks, analytics, and a one-time AI-token allowance. Starter costs $15 a month; Pro costs $49 a month. Submissions beyond a plan limit are not accepted until the next billing cycle unless upgraded.

Spec sheet

Product
Formidable is an AI-powered form builder that generates forms from natural-language descriptions.Read 3 Oct 2026 · formidable.software
Integrations
The published pages identify webhooks, a JSON API, and a React SDK as integration options.Read 3 Oct 2026 · formidable.software
Security
The privacy policy lists encryption at rest and in transit, access controls and authentication, and regular security assessments as safeguards.Read 3 Oct 2026 · formidable.software
Support
The documentation lists [email protected] as the help email, and the Pro plan includes priority support.Read 3 Oct 2026 · docs.formidable.software
AI data handling
The policy says form-generation prompts may be processed by Anthropic, while submission data and respondent information are not sent to AI services.Read 3 Oct 2026 · formidable.software
API and React
Formidable offers a JSON REST API and an open-source Forma React library for rendering form specifications in a custom interface.Read 3 Oct 2026 · docs.formidable.software
Approval workflows
Forms can compute approve, reject, or escalation outcomes from business rules and eligibility criteria.Read 3 Oct 2026 · formidable.software
Computed fields
Computed fields support weighted scores, boolean outcomes, and formatted outputs, with expressions evaluated in real time.Read 3 Oct 2026 · formidable.software
Conditional logic
Fields can appear, disappear, or become required based on answers and conditional expressions.Read 3 Oct 2026 · formidable.software
Data location
The privacy policy says account, form, and submission data are stored within the European Union.Read 3 Oct 2026 · formidable.software
Data roles
Formidable says it is the data controller for user account data and acts as processor for data submitted through users’ forms.Read 3 Oct 2026 · formidable.software
Publishing
Users can publish hosted forms, share links, embed forms in an iframe, and receive submissions through webhooks.Read 3 Oct 2026 · formidable.software
Usage limit
Submissions beyond a plan’s monthly limit are not accepted until the next billing cycle unless the user upgrades.Read 3 Oct 2026 · formidable.software

Plans and prices

Free Free forever 1 published form · 1,000 submissions/month · AI tokens included as a one-time allowance · conditional logic, computed fields, webhooks, analytics Read 3 Oct 2026 · formidable.software
Form Pass $9, paid once one-time +1 published form on Free tier · 5,000 submissions/month for that form Read 3 Oct 2026 · formidable.software
Starter $15 a month monthly Unlimited published forms · 5,000 submissions/month · 10x AI tokens/month · removes Formidable branding Read 3 Oct 2026 · formidable.software
Pro $49 a month monthly Unlimited published forms · 10,000 submissions/month · 30x AI tokens/month · priority support Read 3 Oct 2026 · formidable.software

Every Formidable plan and price →

Strong points and limits

Strong points

  • Generates forms from natural-language descriptions
  • Supports conditional and computed fields
  • Can calculate approve, reject, or escalation outcomes
  • Offers hosted, link, iframe, and webhook publishing
  • Stores account, form, and submission data in the EU

Limits

  • Free plan allows one published form
  • Free plan includes 1,000 submissions per month
  • Over-limit submissions are not accepted until the next cycle
  • Generation prompts may be processed by Anthropic

Who it suits

Formidable suits teams that need rule-driven forms, computed results, approvals, and webhook delivery. Developers can use its JSON API or Forma React library for custom interfaces.

Verdict

Formidable combines natural-language form generation with detailed rules, computed fields, and developer integration options. Its submission caps and stated AI data handling should be reviewed before choosing a plan.

Where Specifiction places it

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