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…
Best for: Product and engineering teams that need pixel-perfect, embeddable forms with deep identity, payment, and compliance integrations for regulated workflows.
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
Feathery
Fillout
Heyflow
Primary category
Forms
Forms
Forms
Rating
Not documented
Not documented
Not documented
Pricing model
Freemium
Freemium / Subscription
Freemium
Starting price
Free
Free (paid plans from $15/month billed annually)
Free (10 responses/month); paid plans from $22/month
Free plan
Yes
Yes
Yes
Free trial
Not documented
Yes
Yes
Platforms
Web
Web
Web
Team collaboration
Not documented
Not documented
Not documented
AI features
Yes
Yes
Not documented
Public API
Yes
Yes
Yes
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
Feature
Feathery
Fillout
Heyflow
Free plan available
Available
Available
Available
Unlimited seats on every plan
Unavailable
Available
Not documented
Logic and Validation
Feature
Feathery
Fillout
Heyflow
Developer SDK (React/JavaScript embed)
Available
Not documented
Not documented
Phone/OTP lead validation
Not documented
Not documented
Available
Native A/B testing
Available
Not documented
Available
Integrations and Branding
Feature
Feathery
Fillout
Heyflow
Native two-way database sync (Notion/Airtable)
Not documented
Available
Not documented
Custom branding/white-label
Available
Available
Available
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
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.