Kairn

For founders and contributors

See what none of us can see alone.

Kairn connects early-stage founders with relevant contributors to challenge assumptions, reveal overlooked problems, and improve ideas before significant time and money are committed.

How would you like to take part?

For foundersI'm developing an idea

Test assumptions with matched respondents and refine before you build.

Validate an idea $25/monthFor contributorsI notice problems worth solving

Raise an everyday frustration, evaluate matched ideas, or help promising work improve.

Share or evaluate Join free

Founder and contributor journeys in Kairn

Define your current idea

You have an idea. Make it testable.

Turn the problem and proposed solution into a clear hypothesis.

Give matched respondents enough context to assess your idea or current MVP.

ProblemState the need you want to address

FeaturesDescribe how the product may respond

MVPAdd an optional description and reference

A clear hypothesis ready to test

Challenge the assumptions behind it.

Learn why it may fail before asking whether people want it.

Kairn invalidates first, then tests the refined idea with a new group.

InvalidateSurface objections, risks, and weak assumptions

RefineRevise the idea using real feedback

ValidateTest intent, price, and priorities

Challenge first. Validate second.

Current validation stage: Define. Describe the problem, core features, audience, and optional regions.

Matched respondents

Hear from the right people.

Relevant feedback starts with the right audience.

Kairn matches respondents and organizes their combined evidence.

MatchTarget profiles, interests, and regions

SeparateUse fresh groups for each round

AnalyzeFind themes, evidence, and outliers

AI organizes evidence—it does not predict success.

Relevant feedback, clearly organized

Where the journeys meet

Add your stone.

The problems you live with could become tomorrow's startups.

Share a real problem through a focused poll, discover who else experiences it, contribute to ideas matched to your experience, and follow promising solutions as they evolve.

ShareRaise a focused problem poll

ContributeRespond to ideas matched to your experience

FollowTrack promising solutions as they evolve

A community where roles can change

Shared next steps

Move With Conviction.

Keep contributing, continue refining, or begin an idea of your own.

Founders own each product decision while relevant contributors can remain involved as it evolves.

RefineTest a stronger product version

ParticipateJoin later surveys or beta opportunities

BeginValidate an idea of your own

A practical next step supported by evidence

Explore an idea

Your unfinished work stays private.

Selected accessOnly selected respondents can access an active survey.

Hidden responsesParticipants cannot browse other responses.

Founder-controlled launchA product is shared publicly only after its founder chooses to launch.

Sometimes you guide. Sometimes you reveal.

Choose how you want to participate today. You can change paths as your role changes.

Contribute

Add what you can see.

Join free. Upgrade to contribute at a larger scale.

Free

$0forever

Who is this for?For anyone who wants to contribute and occasionally explore a problem.

Share your perspective and ask one focused question each month.

  • Participate in matched research
  • Create one community poll each month
  • Use up to 3 questions and 100 responses
Join free

Contributor

$25USD per year · about $2/month

Who is this for?For active contributors who want to uncover important problems, run larger community polls, and make a greater impact.

Run larger community polls and earn recognition for valuable contributions.

  • Earn points for valuable research contributions
  • Create 3 closed-ended surveys each month
  • Use up to 5 questions and 500 responses
  • Expand your polling capacity using earned points
Become a Contributor

Build

Build with evidence.

Everything you need to validate and refine an idea.
$25USD per month

Who is this for?For founders who want evidence before investing in an idea.

Founder introductory benefit

Every Founder payment includes one year of Contributor access. If Founder access ends, Contributor access continues until its annual date.

  • Each Founder payment includes one year of Contributor access
  • Keep up to 2 validation projects active at once
  • Refine each project through up to 3 iterations
  • Invite up to 300 matched respondents per survey
  • Structured assumption testing followed by market validation
  • AI summaries and strategic insights from participant responses
Start validating

Follow the trail. Get one month of full access.

Follow the official Kairn Instagram account at @kairncollective, submit your handle for manual verification, and receive your first month with full platform features. You will also hear about new launches and testing opportunities.

Claim my free month

Contact Kairn

Let’s talk.

Share feedback, ask a question, raise a concern, or discuss a collaboration. We’d love to hear from you.