Feathery vs Fillout vs Heyflow

Feathery, Fillout, and Heyflow all build forms, but for different jobs. Feathery is a developer-first, low-code platform with a React and JavaScript SDK and…

Feathery

Freemium · From Free

Best for: Product and engineering teams that need pixel-perfect, embeddable forms with deep identity, payment, and compliance integrations for regulated workflows.

Fillout

Freemium / Subscription · From Free (paid plans from $15/month billed annually)

Best for: No-code teams that want unlimited seats on every plan and native two-way sync with Notion or Airtable without automation middleware.

Heyflow

Freemium · From Free (10 responses/month); paid plans from $22/month

Best for: Performance marketers running paid lead-generation campaigns who need multi-step funnels with phone and OTP lead validation.

At a Glance

 FeatheryFilloutHeyflow
Primary categoryFormsFormsForms
RatingNot documentedNot documentedNot documented
Pricing modelFreemiumFreemium / SubscriptionFreemium
Starting priceFreeFree (paid plans from $15/month billed annually)Free (10 responses/month); paid plans from $22/month
Free planYesYesYes
Free trialNot documentedYesYes
PlatformsWebWebWeb
Team collaborationNot documentedNot documentedNot documented
AI featuresYesYesNot documented
Public APIYesYesYes

Standout Differences

Feathery targets developers and regulated industries

A React and JavaScript SDK plus native Plaid, Alloy, and LexisNexis identity checks make Feathery a fit for fintech and insurance intake flows.

Feathery

Fillout gives every plan unlimited seats

Even Fillout's free tier includes unlimited forms and unlimited team seats, with pricing scaling only by monthly response volume.

Fillout

Heyflow is purpose-built for paid lead-gen funnels

Phone and OTP verification plus native Meta and Google Ads integrations help Heyflow filter fake leads and track ad-to-funnel conversion.

Heyflow

Free tiers vary dramatically in generosity

Feathery allows 500 monthly submissions, Fillout allows 1,000 responses with unlimited forms, and Heyflow's free plan is capped at just 10 responses per month.

Feathery, Fillout, Heyflow

Feature-by-Feature

Access and Pricing

FeatureFeatheryFilloutHeyflow
Free plan availableAvailableAvailableAvailable
Unlimited seats on every planUnavailableAvailableNot documented

Logic and Validation

FeatureFeatheryFilloutHeyflow
Developer SDK (React/JavaScript embed)AvailableNot documentedNot documented
Phone/OTP lead validationNot documentedNot documentedAvailable
Native A/B testingAvailableNot documentedAvailable

Integrations and Branding

FeatureFeatheryFilloutHeyflow
Native two-way database sync (Notion/Airtable)Not documentedAvailableNot documented
Custom branding/white-labelAvailableAvailableAvailable

Pricing Compared

Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.

Feathery

Free — $0 monthly
Growth — Custom pricing custom
Business — Custom pricing custom

Fillout

Free — $0 Free forever
Starter — $15/month (billed annually, $180/year); $19/month billed monthly Monthly or annual
Pro — $40/month (billed annually, $480/year); $49/month billed monthly Monthly or annual
Business — $75/month (billed annually, $900/year); $89/month billed monthly Monthly or annual
Enterprise — Custom pricing Contact sales

Heyflow

Free — $0 monthly
Starter — $22/month monthly
Growth — $79/month monthly
Scale — $229/month monthly

Pros & Cons

Feathery

Pros

  • Extensive customization, from natural-language conditional logic to raw JavaScript and CSS control, well beyond most form builders
  • Deep native integrations covering CRM, payments, identity verification, and authentication out of the box
  • Developer-first React and JavaScript SDK makes embedding forms into existing products straightforward
  • SOC 2 compliance included even on the Free tier, with HIPAA and GDPR options for regulated industries on paid tiers

Cons

  • Steeper learning curve for non-technical users compared to simpler tools like Tally or Typeform
  • Growth and Business tiers require a custom quote rather than transparent, fixed self-serve pricing
  • Free plan is capped at 500 monthly submissions and 5 live forms, modest limits for growing teams
  • Recent product and go-to-market focus has shifted heavily toward financial services and insurance, which may deprioritize general-purpose form use cases

Fillout

Pros

  • Generous free plan with 1,000 responses per month and unlimited forms and seats, more permissive than many competitors' free tiers.
  • Unlimited seats on every paid tier removes the per-user cost penalty common in other form builders.
  • Native two-way sync with Notion and Airtable avoids the latency and extra cost of Zapier-style automation middleware.
  • Broad feature set (payments, e-signatures, scheduling, PDF generation) reduces the need for separate point tools.

Cons

  • Paid tiers are gated primarily by monthly response volume, which can require an upgrade sooner for high-traffic forms.
  • Removing Fillout's own branding requires at least the Pro plan, not available on Free or Starter.
  • Advanced governance features like SSO and audit logs are reserved for the custom-priced Enterprise tier.
  • The company's 2025-2026 restructuring under the Zite parent brand may create some confusion for customers researching the company versus the product.

Heyflow

Pros

  • Multi-step funnel approach converts better than static forms for paid acquisition
  • Strong lead-quality tools with phone and OTP validation built in
  • Large template and integration library for fast setup
  • Native Meta and Google Ads integrations aid tracking and optimization
  • GDPR-conscious, EU-based provider popular with DACH and European marketers

Cons

  • Pricing scales with response volume, which can get expensive for high-traffic campaigns
  • Branding removal and A/B testing are gated behind higher-tier plans
  • Free plan is limited to only 10 responses per month
  • Smaller global brand recognition compared to Typeform or Unbounce
  • Advanced features like custom code require Scale or Enterprise tiers

Use Cases

Choose Feathery: Product and engineering teams that need pixel-perfect, embeddable forms with deep identity, payment, and compliance integrations for regulated workflows.
Choose Fillout: No-code teams that want unlimited seats on every plan and native two-way sync with Notion or Airtable without automation middleware.
Choose Heyflow: Performance marketers running paid lead-generation campaigns who need multi-step funnels with phone and OTP lead validation.

Feathery

  • Developer-Embedded Product Onboarding — Product and engineering teams use Feathery's React and JavaScript SDK to build brand-consistent signup, onboarding, and payment forms embedded directly inside their own applications.
  • Financial Services Client Onboarding — Wealth management firms use Feathery to automate client onboarding, account opening, proposal generation, and account maintenance workflows with logic-driven, compliant forms.
  • Insurance Underwriting and Submission Intake — Insurance carriers and brokers use Feathery to automate submission intake, book roll ingestion, policy checks, and proposal generation across personal and commercial lines.

Fillout

  • Lead capture synced to Airtable or Notion — Marketing and sales teams use Fillout to collect leads through embedded forms that write directly into an existing Notion or Airtable database in real time.
  • Client intake and payment collection — Agencies and service businesses use Fillout to build intake forms that collect information, e-signatures, and upfront payments in a single step.
  • Internal surveys and feedback forms — Operations teams use Fillout's unlimited-seat model to let every employee create and share internal surveys or feedback forms without added per-user cost.

Heyflow

  • B2B lead generation — Sales and marketing teams build multi-step qualification funnels that route higher-intent leads to sales while filtering out fake submissions.
  • Real estate and financial services — Agencies build mortgage calculators, property finders, and insurance quote flows that personalize pricing based on user input.
  • Performance marketing campaigns — Paid acquisition teams replace static landing page forms with interactive funnels connected directly to Meta and Google Ads.

Frequently Asked Questions

Which of these three form builders is best for developers?

Feathery, since it ships a React and JavaScript SDK for embedding forms directly into web and mobile applications with programmatic control over styling and logic, a capability Fillout and Heyflow do not document.

Which tool syncs natively with Notion or Airtable?

Fillout is the only one of the three with documented native, two-way sync to Notion and Airtable that creates or updates records without Zapier or webhooks.

Which tool is built specifically for lead-generation funnels?

Heyflow, which is designed around multi-step, ad-driven lead funnels with phone number and OTP verification to filter out fake submissions, plus native Meta and Google Ads integrations.

Do all three offer a free plan?

Yes, though the limits differ significantly: Feathery's free plan allows 500 monthly submissions and 5 live forms, Fillout's free plan allows 1,000 responses with unlimited forms and seats, and Heyflow's free plan is capped at just 10 responses per month.

Which tool has unlimited seats on every pricing tier?

Fillout, whose free, Starter, Pro, and Business plans all include unlimited team seats and unlimited forms, with pricing scaling only by monthly response volume.

Read the full Feathery review · Read the full Fillout review · Read the full Heyflow review