Fillout vs Formstack: Which Survey Software Is Better in 2026?
Compare pricing, features, integrations, verified reviews, AI capabilities, security, and customer satisfaction, side by side, with no marketing spin.
The Short Answer
Fillout vs Formstack, in 15 seconds
Choose Fillout if…
- You want the lower entry price
- You need a genuinely free plan
Choose Formstack if…
- You depend on a broad integration ecosystem
- You have strict security & compliance needs
- You need the broader feature set
Head-to-Head Scorecard
How Fillout and Formstack score
Formstack leads on 3 of 9 measured dimensions.
- Even
Customer Rating
Average score from verified user reviews
FilloutNo reviewsFormstackNo reviews - Even
Review Volume
Number of verified reviews, a proxy for adoption
Fillout0Formstack0 - Fillout
Entry Pricing
Lowest published starting price (free plan = lowest)
Fillout$15/moFormstack$83/mo - Fillout
Free Access
Availability of a free plan and/or free trial
FilloutFree plan + trialFormstackFree trial - Formstack
Integrations
Number of listed third-party integrations
Fillout6Formstack10 - Formstack
Features
Number of listed product capabilities
Fillout6Formstack12 - Even
AI Features
Capabilities mentioning AI, automation or ML
Fillout,Formstack, - Formstack
Security & Compliance
Number of listed compliance certifications
Fillout2Formstack4 - Even
Platforms & Deployment
Supported platforms and deployment options
Fillout3Formstack3
Feature Comparison
Fillout vs Formstack feature breakdown
Search or filter the full feature matrix, core features, AI, integrations, APIs, security and compliance.
Fillout
FormstackPricing Comparison
Fillout vs Formstack pricing
Entry pricing, plan tiers and the cost factors that shape total cost of ownership.
Fillout
$15/mo to start- Multi-page forms
- Conditional logic
- PDF generation
- REST API
- More responses
- Remove branding
- Custom themes
- All Free features
- Custom CSS
- Signature collection
- Calendly integration
- Analytics
- Custom domains
- Priority support
- Pre-fetch data
- White-label emails
Formstack
$83/mo to start- No-code form builder
- Conditional logic
- Payment collection
- Integrations
- Forms, Documents, and Sign
- Document generation
- E-signatures
- Advanced integrations
- Advanced security and SSO
- Higher limits
- HIPAA (BAA)
- Dedicated support
Total cost of ownership factors
Beyond list price, factor in implementation, training, add-ons and per-seat scaling when estimating total cost of ownership.
Pros & Cons
Fillout vs Formstack: strengths and trade-offs
Fillout
Pros
- Free plan available
- Free trial offered
- Lower starting price ($15/mo)
- Compliance: SOC 2 Type II, GDPR
- Public API available
Cons
- Fewer native integrations than the alternative
Formstack
Pros
- Free trial offered
- Broad integration ecosystem (10)
- Compliance: SOC 2, GDPR, HIPAA
- Public API available
Cons
- No free plan
- Higher starting price ($83/mo)
Buyer Fit
Who should use Fillout vs Formstack?
Startups
Fillout
Fillout keeps early-stage costs lowest with its entry tier.
Small businesses
Fillout
Fillout offers the most accessible pricing for lean teams.
Agencies
Formstack
Formstack connects to more tools for multi-client workflows.
Enterprises
Formstack
Formstack leads on compliance and breadth for complex needs.
Ecommerce
Formstack
Formstack integrates with more of the commerce stack.
SaaS companies
Formstack
Formstack is the more developer- and automation-friendly choice.
Integration overlap
Shared integrations (2)
Only in Fillout (4)
Only in Formstack (8)
Keep Exploring
Other alternatives worth considering
Similar survey software products buyers compare alongside Fillout and Formstack.
Ask SIA which solution fits your business
SIA, Saaskart's AI buying assistant, weighs Fillout and Formstack against your team size, budget, integrations and compliance needs, then recommends the right fit and the questions to ask each vendor.
Get a personalised recommendationFillout vs Formstack, Frequently Asked Questions
What is the difference between Fillout and Formstack?
Fillout and Formstack are both Survey Software solutions. Fillout is rated 0.0/5 by 0 users, while Formstack is rated 0.0/5 by 0 users. The main differences lie in pricing, features, and target audience.
Which is better, Fillout or Formstack?
Based on user ratings, Fillout scores higher at 0.0/5. The best choice depends on your team size, budget, and specific requirements.
Which is cheaper, Fillout or Formstack?
Fillout is the more affordable option, starting at $15/month.
Does Fillout or Formstack have a free plan?
Fillout offers a free plan. Formstack does not have a free tier but does offer a free trial.
Can I switch from Fillout to Formstack?
Switching between Fillout and Formstack is possible. Both support data export. Check integration compatibility and plan for data migration to minimise disruption to your team.
Who should use Fillout vs Formstack?
Fillout is best suited for teams that prioritise enterprise features. Formstack works well for teams needing advanced capabilities.
Our Verdict
The bottom line on Fillout vs Formstack
Best Overall
Either
It's a tie balances user satisfaction and proven adoption.
Best for Startups
Fillout
Fillout has the friendliest entry point for new teams.
Best for Enterprise
Formstack
Formstack leads on compliance and feature breadth.
Best Value
Fillout
Fillout delivers the lowest cost to get started.
Best AI Features
Either
Comparable AI capabilities on both sides.
Highest Rated
Either
Both earn equal user ratings.