Softwr

Surveys · head to head

Fillout vs KoboToolbox

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
Rated
-
Full reviewWebsite
KoboToolbox logo

KoboToolbox

Surveys

Offline-first data collection for humanitarian, development and research field work

From
Free
Rated
-
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.; KoboToolbox the free Community plan caps at 5,000 submissions a month and 1 GB of file storage, and any form collecting photographs exhausts storage long before it exhausts the submission count.
  • They diverge on capability: Fillout covers Unlimited seats and forms, KoboToolbox covers Offline data collection.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Fillout and KoboToolbox actually diverge.

Attributes where Fillout and KoboToolbox differ
AttributeFilloutKoboToolbox
Pricing modelPer month by response countPer month by submission count
PlatformsWeb, APIWeb, Android, Self-hosted

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Surveys).

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 KoboToolbox

  • Offline data collection
  • XLSForm and browser form builder
  • Skip logic and validation
  • Multilingual forms
  • GPS and media capture
  • Case management
  • Exports and analysis
  • Self-hosting

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

KoboToolbox

  • A rapid needs assessment after a disaster where enumerators work for days without mobile coveragenot Fillout
  • A ministry of health running a national survey that must be self-hosted in country for data protection reasonsnot Fillout
  • An NGO running the same longitudinal household survey in four languages across three countriesnot Fillout
  • A research group that needs a free instrument for a modest sample and an SPSS export at the endnot 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.

KoboToolbox

  • The free Community plan caps at 5,000 submissions a month and 1 GB of file storage, and any form collecting photographs exhausts storage long before it exhausts the submission count.
  • The Starter paid plan allows only 1,000 submissions a month for $21, which is fewer than the free nonprofit tier, so a small commercial user pays more for less than a charity gets free.
  • Eligibility for the free plan depends on Kobo's assessment of your organisation and purpose, which introduces an approval step that a consultancy working on behalf of an NGO may not clear.
  • Self-hosting is genuinely possible but the stack is substantial to deploy and maintain, so a ministry choosing it for data residency reasons takes on real infrastructure staffing cost.
  • Analysis and reporting inside the platform are basic compared with dedicated tools, so most serious use exports to Excel, Power BI or statistical software, and that export step is where data governance often gets loose.

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

KoboToolbox

Free
  • CommunityFree
    • Free for qualifying nonprofit and public good organisations
    • 5,000 submissions per month
    • 1 GB file storage
  • Starter$21/month
    • 1,000 submissions per month
    • 0.5 GB file storage
    • For private and for-profit use
  • Professional$129/month
    • 25,000 submissions per month or 300,000 per year
    • Unlimited file storage
    • Priority support
  • Teams$undefined/month
    • 50,000 submissions per month or 600,000 per year
    • Shared team administration
    • Pricing published by plan tier

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 KoboToolbox if

  • You need offline data collection.
  • You want to start without paying.
  • You work on Web, Android, Self-hosted.
  • You also want xlsform and browser form builder.
KoboToolbox review

Questions people ask

Is Fillout or KoboToolbox better?
Neither clearly leads. Fillout starts at Free and KoboToolbox at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fillout or KoboToolbox?
Fillout starts at Free and KoboToolbox at Free.
Does Fillout or KoboToolbox run on more platforms?
Fillout runs on Web, API. KoboToolbox runs on Web, Android, Self-hosted.
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 KoboToolbox is typically brought in for.
What can Fillout do that KoboToolbox cannot?
Fillout covers Unlimited seats and forms, Database read and write, Soft response limits, Conditional logic and calculations. KoboToolbox covers Offline data collection, XLSForm and browser form builder, Skip logic and validation, Multilingual forms.

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.

KoboToolbox: Is KoboToolbox free?

Free for qualifying nonprofit and public good organisations under the Community plan, currently 5,000 submissions a month and 1 GB of storage. Commercial use requires a paid plan from $21 a month.

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.

KoboToolbox: Who funds it?

Kobo Inc is a US nonprofit funded roughly 38 per cent by grants and contributions and 62 per cent by service contracts, subscriptions and training, based on its 2024 figures.

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.

KoboToolbox: Can I host it myself?

Yes. The server stack is open source and is regularly deployed in country for data residency reasons.

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.

KoboToolbox: Are forms portable?

Yes. It uses XLSForm and ODK standards, so instruments move between Kobo and other ODK-compatible servers.

Share

Related pages

More on Fillout

More on KoboToolbox

Keep looking

Other head to heads