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: $25/mo (or $20/mo billed yearly) | 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 adapts follow-ups 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) | $20 | $20 |
| 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 adapt questions to each respondent. 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 and adapts follow-up questions 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 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.