Softwr

Surveys · head to head

Fillout vs Thunkable

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
Thunkable logo

Thunkable

No-Code

No-code, drag-and-drop mobile app builder priced by AI tokens and project counts

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • 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.; Thunkable every paid tier is metered by a monthly AI token allowance, so heavy use of the AI assistant, which is the tool's main productivity feature, can be exhausted well before a billing period ends.
  • They diverge on capability: Fillout covers Unlimited seats and forms, Thunkable covers Block-based logic editor.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Fillout and Thunkable actually diverge.

Attributes where Fillout and Thunkable differ
AttributeFilloutThunkable
Pricing modelPer month by response countPer month, tiered by AI token allowance and project count
PlatformsWeb, APIWeb, iOS, Android
CategorySurveysNo-Code

Identical on both: starting price (Free), free tier (Yes), 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 Thunkable

  • Block-based logic editor
  • Native compilation
  • AI app assistant
  • Component marketplace
  • Live testing
  • Custom branding

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 Thunkable
  • An organisation with many occasional form builders, where per-seat pricing elsewhere would cost more than the forms are worthnot Thunkable
  • Replacing a survey tool, a scheduling tool and a payment link with one form that does all threenot Thunkable
  • Public forms that must keep collecting through an unexpected traffic spike rather than shutting off at a quotanot Thunkable

Thunkable

  • A non-developer or founder prototyping an app idea before hiring an engineernot Fillout
  • An educator teaching app-building concepts without requiring students to write codenot Fillout
  • A small business needing a simple internal or customer-facing app with modest logicnot Fillout
  • A hobbyist building a single published app who does not need more than one live app slotnot 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.

Thunkable

  • Every paid tier is metered by a monthly AI token allowance, so heavy use of the AI assistant, which is the tool's main productivity feature, can be exhausted well before a billing period ends.
  • Only the Builder tier and above allow a live published app at all in useful numbers, so the entry-level paid plan cannot actually get an app onto the store in a meaningful way.
  • Block-based logic becomes unwieldy for apps with genuinely complex business rules, and there is no clean escape hatch to written code within the platform.
  • Native integrations and performance-sensitive features (heavy graphics, background processing) are limited compared to a coded framework, so the tool has a real complexity ceiling.
  • App ownership and export options are more restrictive than an open source framework; leaving the platform typically means rebuilding rather than exporting a portable codebase.

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

Thunkable

Free
  • FreeFree
    • 2,000 AI tokens
    • 3 public projects
    • 5 screens per project
  • Accelerator$19/month
    • 20,000 AI tokens
    • 5 public and 1 private project
    • 10 screens per project
  • Builder$37/month
    • 50,000 AI tokens
    • Unlimited public, 10 private projects
    • Unlimited screens, 1 live published app
  • Advanced$99/month
    • 100,000 AI tokens
    • Unlimited private projects and live published apps
    • Priority support

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 Thunkable if

  • You need block-based logic editor.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want native compilation.
Thunkable review

Questions people ask

Is Fillout or Thunkable better?
Neither clearly leads. Fillout starts at Free and Thunkable at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fillout or Thunkable?
Fillout starts at Free and Thunkable at Free.
Does Fillout or Thunkable run on more platforms?
Fillout runs on Web, API. Thunkable runs on Web, iOS, Android.
Can I use Fillout for free?
Both have a free tier, so you can try either at no cost before committing.
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 Thunkable is typically brought in for.
What can Fillout do that Thunkable cannot?
Fillout covers Unlimited seats and forms, Database read and write, Soft response limits, Conditional logic and calculations. Thunkable covers Block-based logic editor, Native compilation, AI app assistant, Component marketplace.

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.

Thunkable: Can I publish an app on the free plan?

The free plan is aimed at building and testing; live publishing capacity in a meaningful way starts on the Builder plan.

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.

Thunkable: What happens if I run out of AI tokens?

AI-assisted generation stops working until the next billing cycle or an upgrade; manual block-based editing still works.

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.

Thunkable: Is this suitable for a complex business app?

No. It is built for simple to moderately complex apps; heavy custom logic and native integrations are better served by a coded framework.

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.

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