Softwr

Surveys · head to head

Fillout vs Superblocks

Fillout logo

Fillout

Surveys

Form builder that reads and writes records in Airtable, Notion, HubSpot and Salesforce, with unlimited seats on every plan including the free one

From
Free
Free plan
Yes
Full reviewWebsite
Superblocks logo

Superblocks

No-Code

AI-assisted platform for building internal tools and business apps

From
$100/month
Free plan
No
Full reviewWebsite

The short version

  • Only Fillout has a free tier, so it costs nothing to try first.
  • Each has a real cost: Fillout the Business plan is marketed with unlimited responses but the fair use policy names thresholds of 30,000 submissions a month, 250,000 in total, 500 forms per account and 50 GB of uploads a month, above which the vendor may limit or suspend features, so unlimited means unmetered rather than uncapped.; Superblocks teams plan is limited to just 1 hosted app by default, with additional apps costing $10/app/month.
  • They diverge on capability: Fillout covers Unlimited seats and forms, Superblocks covers Clark AI agent.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Fillout and Superblocks actually diverge.

Attributes where Fillout and Superblocks differ
AttributeFilloutSuperblocks
Starting priceFree$100/month
Pricing modelPer month by response countsubscription
Free tierYesNo
CategorySurveysNo-Code

Identical on both: platforms (Web, API), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Fillout

  • Unlimited seats and forms
  • Database read and write
  • Soft response limits
  • Conditional logic and calculations
  • EU hosting
  • REST API and webhooks

Only in Superblocks

  • Clark AI agent
  • Clark User Memory
  • 50+ integrations
  • Staging and production environments
  • Git-owned code output
  • Cloud-Prem deployment

What people use each for

The jobs each tool is most often brought in to do.

Fillout

  • A team already running on Airtable or Notion that wants forms which update existing records rather than appending new rowsnot Superblocks
  • An organisation with many occasional form builders, where per-seat pricing elsewhere would cost more than the forms are worthnot Superblocks
  • Replacing a survey tool, a scheduling tool and a payment link with one form that does all threenot Superblocks
  • Public forms that must keep collecting through an unexpected traffic spike rather than shutting off at a quotanot Superblocks

Superblocks

  • Building internal admin tools with AI assistancenot Fillout
  • Enterprise deployment in a private VPC or fully on-premnot Fillout
  • Teams needing SOC 2 / HIPAA-compliant internal app hostingnot Fillout
  • Extending a single hosted app with paid add-on appsnot Fillout

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Fillout

  • The Business plan is marketed with unlimited responses but the fair use policy names thresholds of 30,000 submissions a month, 250,000 in total, 500 forms per account and 50 GB of uploads a month, above which the vendor may limit or suspend features, so unlimited means unmetered rather than uncapped.
  • EU data residency begins on the Team plan at 250 USD per month, more than three times the Business price, and is not applied automatically; you must upgrade and then raise a support request to be moved.
  • The Team plan is hidden behind a secondary tab that does not render without interaction, so buyers reading the pricing page see Business at 75 USD as the top self-serve tier and only discover the 250 USD step when they ask for single sign-on or EU hosting.
  • The enterprise marketing page lists hosting in the United States, EU, United Kingdom, Australia and Canada, but the security documentation and subprocessor list name only the United States and the EU, so three of those five regions should be confirmed in writing before they are relied on.
  • The vendor is SOC 2 Type 2 but claims neither ISO 27001 nor HIPAA anywhere in its documentation, and it is angel-funded with no disclosed institutional round while the parent company now trades as Zite and ships a separate AI application builder.

Superblocks

  • Teams plan is limited to just 1 hosted app by default, with additional apps costing $10/app/month.
  • Usage is capped by Governed Agent Units, adding a metering layer beyond a flat per-seat price.
  • Advanced deployment options like VPC and Cloud-Prem are reserved for the custom-priced Enterprise tier.
  • No published free tier, only a 14-day trial, making it harder to evaluate at no cost long-term.

Pricing, plan by plan

Fillout

Free
  • FreeFree
    • 1,000 responses per month
    • Unlimited forms and unlimited seats
    • 20 MB per file upload
  • Starter$15/month
    • 180 USD per year billed annually, a stated 20 percent saving on monthly billing
    • 2,000 responses per month
    • Unlimited forms and seats
  • Pro$40/month
    • 480 USD per year billed annually
    • 5,000 responses per month
    • Branding fully removed at this tier
  • Business$75/month
    • 900 USD per year billed annually
    • Marketed as unlimited responses, subject to a fair use threshold near 30,000 per month
    • 1 GB per file upload

Superblocks

$100/month
  • Teams$100/month
    • 100 Governed Agent Units/month
    • Up to 15 builders
    • 50+ integrations
  • Enterprise$undefined/month
    • Everything in Teams
    • VPC or Cloud-Prem deployment
    • Source control integration and secrets management

Which should you pick?

Choose Fillout if

  • You need unlimited seats and forms.
  • You want to start without paying.
  • You work on Web, API.
  • You also want database read and write.
Fillout review

Choose Superblocks if

  • You need clark ai agent.
  • You work on web, api.
  • You also want clark user memory.
Superblocks review

Questions people ask

Is Fillout or Superblocks better?
Neither clearly leads. Fillout starts at Free and Superblocks at $100/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fillout or Superblocks?
Fillout has a free tier; the other does not. Paid plans start at Free for Fillout and $100/month for Superblocks.
Does Fillout or Superblocks run on more platforms?
Fillout runs on Web, API. Superblocks runs on web, api.
Can I use Fillout for free?
Yes. Fillout has a free tier, so you can try it without paying. Superblocks starts at $100/month.
What is Fillout best used for?
Fillout is most often used for a team already running on airtable or notion that wants forms which update existing records rather than appending new rows, an organisation with many occasional form builders, where per-seat pricing elsewhere would cost more than the forms are worth, replacing a survey tool, a scheduling tool and a payment link with one form that does all three, public forms that must keep collecting through an unexpected traffic spike rather than shutting off at a quota. Of those, a team already running on airtable or notion that wants forms which update existing records rather than appending new rows and an organisation with many occasional form builders, where per-seat pricing elsewhere would cost more than the forms are worth are not what Superblocks is typically brought in for.
What can Fillout do that Superblocks cannot?
Fillout covers Unlimited seats and forms, Database read and write, Soft response limits, Conditional logic and calculations. Superblocks covers Clark AI agent, Clark User Memory, 50+ integrations, Staging and production environments.

Answered from the vendors’ own pages

Fillout: Are seats really unlimited?

Yes. The vendor states there are no per-seat charges on any plan, including Free, and forms are unlimited too. Responses per month is the only meter below the Business tier.

Superblocks: What does Superblocks cost?

The Teams plan costs $125/month billed monthly or about $100/month billed annually, including 100 Governed Agent Units and up to 15 builders; Enterprise pricing requires booking a demo.

Source
Fillout: What happens when I exceed my response quota?

Nothing breaks. Forms keep collecting, and you can upgrade, buy bulk submissions or wait for the monthly reset.

Superblocks: Is there a free plan?

Superblocks does not offer a free ongoing plan but provides a free 14-day trial of the Teams plan.

Source
Fillout: Can I host respondent data in the EU?

Only from the Team plan at 250 USD per month, and only after contacting support to switch. Note that email and payment subprocessors remain in the United States regardless.

Superblocks: Who owns the code Superblocks generates?

Superblocks states that users fully own all code generated on the platform and can connect it to their own git repository.

Source
Fillout: Is the Business plan really unlimited responses?

It is unmetered, not uncapped. The fair use policy names roughly 30,000 submissions a month as the point at which the vendor may intervene, so treat that as the practical ceiling.

Superblocks: What deployment options does Superblocks offer?

Superblocks supports Cloud, Hybrid (production data kept in the customer's VPC), and Cloud-Prem (the full platform run inside the customer's environment) deployment models.

Source
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