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Formidable
What it is
Formidable is a cloud form builder that generates forms from natural-language descriptions. Conditional expressions can show, hide, or require fields based on answers. Computed fields evaluate in real time for weighted scores, boolean results, and formatted outputs, while business rules can produce approve, reject, or escalation outcomes. Forms may be hosted by Formidable, shared by link, embedded in an iframe, or connected through webhooks. A JSON REST API and open-source Forma React library support custom interfaces. The privacy policy says account, form, and submission data are stored in the European Union. Generation prompts may be processed by Anthropic, while submission and respondent information are not sent to AI services. Listed safeguards include encryption in transit and at rest, access controls, authentication, and regular security assessments. The Free plan costs nothing forever and includes one published form and 1,000 submissions monthly. Form Pass costs $9, paid once; Starter costs $15 a month; Pro costs $49 a month. Submissions beyond a plan limit are not accepted until renewal or upgrade.
For and against
For
- Generates forms from natural-language prompts
- Supports conditional and computed fields
- Provides REST API and React library
- Stores data within the European Union
- Includes webhooks and hosted publishing
Against
- Free plan allows one published form
- Over-limit submissions are rejected
- AI prompts may be processed by Anthropic
- Paid plans have monthly submission limits
The verdict
Formidable combines AI form creation with logic, calculations, approval outcomes, and developer integration options. Its submission caps and prompt-processing policy should be reviewed before choosing a plan.
Who it suits
It suits people building conditional, computed, or approval-oriented forms who need hosted publishing, APIs, webhooks, or React rendering.
Plans and prices
Free
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
+1 published form on Free tier · 5,000 submissions/month for that form
Read 3 Oct 2026 · formidable.software
Starter
Unlimited published forms · 5,000 submissions/month · 10x AI tokens/month · removes Formidable branding
Read 3 Oct 2026 · formidable.software
Pro
Unlimited published forms · 10,000 submissions/month · 30x AI tokens/month · priority support
Read 3 Oct 2026 · formidable.software
On the record
- 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.formidable.software · read 3 Oct 2026
- API and React
- Formidable offers a JSON REST API and an open-source Forma React library for rendering form specifications in a custom interface.docs.formidable.software · read 3 Oct 2026
- Approval workflows
- Forms can compute approve, reject, or escalation outcomes from business rules and eligibility criteria.formidable.software · read 3 Oct 2026
- Computed fields
- Computed fields support weighted scores, boolean outcomes, and formatted outputs, with expressions evaluated in real time.formidable.software · read 3 Oct 2026
- Conditional logic
- Fields can appear, disappear, or become required based on answers and conditional expressions.formidable.software · read 3 Oct 2026
- Data location
- The privacy policy says account, form, and submission data are stored within the European Union.formidable.software · read 3 Oct 2026
- Data roles
- Formidable says it is the data controller for user account data and acts as processor for data submitted through users’ forms.formidable.software · read 3 Oct 2026
- Integrations
- The published pages identify webhooks, a JSON API, and a React SDK as integration options.formidable.software · read 3 Oct 2026
- Product
- Formidable is an AI-powered form builder that generates forms from natural-language descriptions.formidable.software · read 3 Oct 2026
- Publishing
- Users can publish hosted forms, share links, embed forms in an iframe, and receive submissions through webhooks.formidable.software · read 3 Oct 2026
- Security
- The privacy policy lists encryption at rest and in transit, access controls and authentication, and regular security assessments as safeguards.formidable.software · read 3 Oct 2026
- Support
- The documentation lists [email protected] as the help email, and the Pro plan includes priority support.docs.formidable.software · read 3 Oct 2026
- Usage limit
- Submissions beyond a plan’s monthly limit are not accepted until the next billing cycle unless the user upgrades.formidable.software · read 3 Oct 2026
