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SiliForm
What SiliForm is
SiliForm is a web-based form builder for conversational questionnaires and submission quality checks. You can describe a form and have it produce a draft containing fields and a question flow. Forms can present one question at a time, adjust later questions based on earlier answers, accept voice input, and autosave. SiliForm checks free-text responses for invalid or irrelevant content and can prompt respondents to try again. It also scores submissions for fake, rushed, duplicate, or AI-written input.
The Free plan includes unlimited forms and responses, basic analytics, and 100 MB of file storage, with uploads capped at 10 MB each. It lists HubSpot, Zapier, and webhook integrations; a lead-generation page also describes sending responses to Google Sheets. Pro adds 10 GB storage and priority support, along with question-level drop-off and geography analytics, UTM tracking, AI response summaries, and response quality scoring. A new account gets a 14-day Pro trial without a credit card, then moves to Free automatically. Pro costs $19 a year when billed annually as $228/yr, or $29 a month when billed monthly. Enterprise pricing is available through sales contact. SiliForm says it does not sell personal data or use it for advertising.
Who it suits
SiliForm suits people who want to build conversational forms and assess the quality of submitted answers. The Free plan may fit basic form collection, while teams needing expanded analytics, more storage, or priority support can consider Pro.
What it does well
- AI generates draft forms from a description.
- Conversational forms can adapt questions to earlier answers.
- Checks free-text responses and scores submission quality.
- Free includes unlimited forms and responses.
- Free plan lists HubSpot, Zapier, and webhook integrations.
What to know first
- Free storage is limited to 100 MB.
- Free uploads are capped at 10 MB per file.
- Webhook requests time out after 5 seconds, with no automatic retries.
Limits
Free includes 100 MB of file storage and limits uploads to 10 MB per file. Pro includes 10 GB of storage; the 14-day Pro trial then moves to Free automatically.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | $0 forever · Unlimited forms & responses · 100 MB file storage · File uploads up to 10MB · Basic analytics | Free |
| Pro (yearly) | Billed annually as $228/yr. Save 34%. · Unlimited forms & responses · 10 GB file storage · Priority support | $228 a year |
| Pro (monthly) | Monthly · Unlimited forms & responses · 10 GB file storage · Priority support | $29 a month |
| Enterprise | Contact Sales · Everything in Pro · Unlimited storage · Dedicated account manager | On request |
As siliform.ai lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Open SiliForm on the web and create an account.
- Use a description to generate a draft form, or create the form you need.
- Configure its questions and flow, including conversational behavior.
- Connect an available integration such as HubSpot, Zapier, or a webhook.
- Start with Free, or use the 14-day Pro trial without a credit card.
Verdict
Pick SiliForm if you want a web form builder with conversational questions and checks for response quality. The Free plan offers unlimited forms and responses, while Pro adds storage and analytics for a listed annual or monthly price. Look elsewhere if your workflow depends on automatic retries for failed webhook deliveries.
Questions
What does SiliForm cost?
Free costs nothing. Pro is $19 a year when billed annually as $228/yr, or $29 a month when billed monthly. Enterprise pricing is available through sales contact.
Is there a free trial?
Yes. Each new account gets a 14-day Pro trial without a credit card, then moves to Free automatically.
Which platforms are available?
SiliForm is listed for web.
What integrations are available?
Free lists HubSpot, Zapier, and webhook integrations. A lead-generation page also describes sending responses to Google Sheets.
What are the Free plan's storage limits?
Free includes 100 MB of storage, and each file upload can be up to 10 MB.
Does SiliForm sell personal data?
SiliForm says it does not sell personal data or use it for advertising.
Facts from SiliForm's own pages
- AI form generation
- Users can describe a form and SiliForm generates a draft with fields and question flow. · siliform.ai, 8 Oct 2026
- Analytics
- Pro includes question-level drop-off and geography analytics, UTM tracking, AI response summaries, and response quality scoring. · siliform.ai, 8 Oct 2026
- Answer checks
- SiliForm checks free-text answers for invalid or irrelevant input and can ask respondents to try again. · siliform.ai, 8 Oct 2026
- Conversational forms
- Forms can show one question at a time and rephrase questions based on earlier answers; respondents can use voice input and forms autosave. · siliform.ai, 8 Oct 2026
- File limits
- Free file uploads are limited to 10MB per file and storage is 100 MB; Pro includes 10 GB storage. · siliform.ai, 8 Oct 2026
- Integrations
- The pricing page lists HubSpot, Zapier, and webhook integrations on Free; a lead-generation page also describes sending responses to Google Sheets. · siliform.ai, 8 Oct 2026
- Privacy
- The privacy policy says SiliForm does not sell personal data or use it for advertising. · siliform.ai, 8 Oct 2026
- Product
- SiliForm is a form builder for creating conversational forms and scoring submissions for fake, rushed, duplicate, and AI-written input. · siliform.ai, 8 Oct 2026
- Security and storage
- The privacy policy says account and form data is stored in a PostgreSQL database hosted on Neon and that file uploads are stored in Supabase Storage. · siliform.ai, 8 Oct 2026
- Support
- Pro includes priority support, and Enterprise includes a dedicated account manager. · siliform.ai, 8 Oct 2026
- Trial
- Every new account gets a 14-day Pro trial without a credit card and then moves to Free automatically. · siliform.ai, 8 Oct 2026
- Webhook delivery limit
- Webhook requests have a 5-second timeout, and failed deliveries are not automatically retried. · siliform.ai, 8 Oct 2026
Where SiliForm stands on Freedom251
- AI Survey Generators#17 of 29