SiliForm vs Fillout
SiliForm vs Fillout: Which Form Builder Fits Your Stack?
Choose SiliForm for AI-generated conversational forms, answer validation, and truly unlimited free responses. Choose Fillout if your forms live inside Notion or Airtable, or you need scheduling and payment collection today — but know analytics and drop-off data sit on its $75/month Business plan.
Competitor pricing last verified 2026-07-18.
SiliForm vs Fillout, feature by feature
| Feature | SiliForm | Fillout |
|---|---|---|
| Free tier response cap | Unlimited responses | 1,000 responses/month |
| Pricing model | Free: unlimited forms & responses. Pro: $20/mo, or $120/yr (~$10/mo) | Starter $15/mo (2,000), Pro $40/mo (5,000), Business $75/mo (unlimited) |
| AI form generation | Describe the form, AI builds the block structure | AI form builder assists; structure largely built manually |
| Conversational flow | One question at a time; AI rewords each question per respondent | Multi-page and one-at-a-time layouts; static questions |
| AI answer validation | Built in — flags junk and off-topic answers | Field-type validation; CAPTCHA on paid plans |
| Form analytics & drop-off | Analytics free; drop-off view on Pro ($20/mo yearly) | Analytics and drop-off rates on Business ($75/mo) |
| Native data-tool sync | Google Sheets, HubSpot, webhooks/Zapier | Deep Notion, Airtable, Smartsheet integrations |
The cost-per-1,000-responses math
Fillout's free tier is one of the more generous meters in the market — but it is still a meter, and analytics live at the top of the ladder.
| Plan | Monthly cost | Per 1,000 responses |
|---|---|---|
| SiliForm Free | $0 | $0 |
| SiliForm Pro (yearly) | $10 | $10 |
| Fillout Free (1,000 resp/mo) | $0 | $0 (at the cap) |
| Fillout Starter (2,000 resp/mo) | $15 | $7.50 |
| Fillout Business (analytics unlocked) | $75 | varies |
Fillout prices verified against fillout.com/pricing. Its free 1,000/month cap is genuinely usable — the jump comes when you want analytics, custom branding removal, or unlimited volume.
What would 1,000 responses/month cost you?
Annual-billing rates from each vendor's live pricing page.
See a SiliForm form for yourself
The fastest way to judge the difference is to open a template — every one is a real, cloneable conversational form.
When Fillout is the better choice
An honest comparison cuts both ways. Fillout wins when:
- Your forms need to write directly into Notion, Airtable, or Smartsheet — Fillout's native two-way integrations there are the best in the category.
- You need scheduling (Calendly-style booking) or payment collection inside the form today — both are live in Fillout, payments even on its free plan.
- You want PDF generation from submissions — Fillout ships it; SiliForm doesn't.
Want AI in the form, not just around it?
Rebuild any Fillout form in SiliForm by describing it in a sentence — then let dynamic mode deliver it as an AI-reworded conversation. Free, unlimited responses.
Rebuild my form freeFree plan. Unlimited responses. No credit card required.
Frequently asked questions
Is Fillout really free for 1,000 responses a month?
Yes — Fillout's free plan allows 1,000 responses/month with unlimited forms, which is the most generous metered free tier among major builders. SiliForm's free plan removes the meter entirely: unlimited responses, unlimited forms.
Which is better for conversational forms?
SiliForm. Fillout offers a one-question-at-a-time layout, but the questions are static. SiliForm's dynamic mode rephrases each question conversationally per respondent using AI, and validates answers semantically before advancing.
Does Fillout have drop-off analytics?
Yes, on its Business plan at $75/month. SiliForm's drop-off view is part of Pro at $20/month, or $120/year billed yearly — and core analytics (completion rate, per-question stats, trends) are free.
How do I switch from Fillout to SiliForm?
There's no one-click importer. Describe your form to SiliForm's AI and it rebuilds the structure in seconds; export existing Fillout submissions to CSV for your records.