Formfy is an AI Agreement Engine for SMS-first client onboarding.
Why Formfy Is the Best Fillout Alternative in 2026
Formfy is the AI Agreement Engine for SMS-first client onboarding. If you're evaluating Fillout and wondering whether Formfy is a better fit, here's the question that separates them: does your form's output need to be a signed, legally binding agreement with a payment attached — or a row in a Notion database?
Who switches to Formfy from Fillout
- Service businesses that need legally binding signatures who found Fillout's signature field is one option among many rather than the product's core purpose.
- Clinics and studios wanting SMS delivery who discovered Fillout sends form links by email or embedded web page but doesn't deliver them in a text message natively.
- Operators who need payment in the signing flow — Fillout integrates with Stripe, but the payment is separate from the signature step in a way that Formfy combines into one mobile link.
- Teams generating new agreement types frequently who want AI to draft the form rather than drag-and-drop build it every time a new service or consent variation is needed.
What Formfy does differently
- Agreement-first design. Every Formfy form is expected to be signed. In Fillout, a signature widget is an optional field alongside 100+ others — the product doesn't assume signature is the point.
- AI generates complete agreements from a prompt. Describe the form; Formfy produces it with appropriate signature blocks, consent language, and field layout. Fillout's form builder is drag-and-drop; there's no generative layer.
- SMS-first delivery. The signing link arrives in a text. Fillout is primarily a web-embed and link-share tool; SMS delivery isn't a native channel.
- Audit trail for legal purposes. Formfy's audit trail includes certificate of completion, tamper-evident sealing, and timestamping appropriate for an enforceable agreement. Fillout logs submissions but the audit trail isn't designed for legal enforceability.
- Payment-in-flow. Deposit and signature happen on one mobile link. Fillout integrates with Stripe but the combined sign-and-pay pattern isn't the intended product motion.
Feature comparison
| Feature | Formfy | Fillout | |---|---|---| | AI form generation from prompt | Yes | No | | Legally binding e-signature | Yes | Partial | | Legal-grade audit trail | Yes | Partial | | SMS delivery built in | Yes | No | | Payment collection in flow | Yes | Partial (Stripe) | | Notion / Airtable integration | Partial | Yes (native) | | Conversational one-at-a-time UX | Partial | Yes | | Mobile-first signing UX | Yes | Yes | | HIPAA-compliant plan | Yes | Yes | | MCP / agent-native integration | Yes | No | | Free tier | 15-day trial | Yes (generous) | | Custom branding | Yes | Yes |
Pricing
Fillout's free tier is generous — unlimited forms with up to 1,000 submissions per month. Fillout Pro is $19/month; Business is $59/month. Formfy Pro is $39/month with unlimited forms, SMS, and payment-in-flow. If your workflow ends in a signed agreement rather than a data row, Formfy at $39/month covers what Fillout can't do at any tier. If you genuinely just need a polished form that feeds Notion, Fillout's free tier may cover your needs entirely.
Other tools to consider
- Typeform — Best-in-class conversational survey UX; highest form completion rates; no legally binding signature.
- Jotform — Deeper template library than Fillout; generous free tier; signing is one optional field.
- DocuSign — Enterprise signing audit trail; right when procurement requires it, not for lightweight SMS onboarding.
- PandaDoc — B2B proposals with signing; better than Fillout for deal-closing document workflows.
- Smartwaiver — Purpose-built waiver kiosk for gyms and activity venues; simpler than Formfy for a single-waiver case.
- SignNow — Affordable per-seat e-signature; no AI generation; better than Fillout if signing is the only goal and you have existing PDFs.