For solo founders

For solo founders with nobody to tell them they're wrong

You have no cofounder to argue with, no team to slow you down, and no one to catch the assumption you can't see. Every hour is zero-sum. ShipFit is the dissenting voice you don't have.

What's breaking you right now

  • You have no cofounder to disagree with you. The idea sounds great because the only person stress-testing it is the person who came up with it.
  • Every hour is zero-sum. There's no teammate to parallelize with, so an hour spent on the wrong thing is an hour that never comes back.
  • You context-switch between founder, builder, marketer, and support all day. Nobody owns 'is this even worth doing,' so it gets skipped.
  • When you're stuck, there's no one across the desk to talk it through. You either spin in your own head or ask the internet and get noise.
  • You can't outsource conviction. Investors and friends are too polite. You need a check that is structurally incapable of being polite.

How ShipFit helps

1

Manufacture the cofounder argument

Run the full 9-question flow and let it push back on your reasoning the way a skeptical cofounder would. About 24% of ideas come back with a Don't Ship verdict. That's the disagreement you don't have at home.

2

Triage before you spend a week

When every hour counts, run a Quick Take first ($5, ~2 min). Kill the weak idea before it eats a week of solo build time you can't get back.

3

Pick the one bet you can actually finish

Solo means you ship one thing at a time. Run two or three competing ideas through Quick Take and let the verdict tiers rank them, instead of going with whatever felt loudest.

4

Turn the decision into a spec you can build alone

Export the playbook straight to Cursor, Claude Code, or Lovable. The 9 decisions become a build plan, so you don't lose a day translating thoughts into a PRD nobody else will read.

5

Get unstuck without a sounding board

Stuck on pricing or who the buyer even is? The pricing stage (Van Westendorp) and buyer stage do the structured thinking you'd normally borrow a brain for.

Why solo founders, specifically

A solo founder has no structural disagreement. On a two-person team, one person says “are we sure about this?” and the other has to answer. Alone, you ask the question and you also get to dismiss it. The result is that bad ideas survive longer for solo founders than for anyone else, because nothing in the room is built to kill them. ShipFit exists to be that something.

The solo founder problem in 40 words

You are builder, marketer, support, and CEO at once. Nobody owns the question “is this worth doing at all,” so it gets skipped, and you find out the idea was dead only after you’ve built it. A forced check fixes that.

What you actually get

You don’t haveShipFit gives you
A cofounder to push back9 forced decisions that argue with your reasoning
Spare hours to wasteA ~2 minute Quick Take before you commit a week
A team to parallelize betsVerdict tiers that rank competing ideas for you
A product manager to write the specAn export to Cursor, Claude Code, Lovable, or v0
A polite-free sounding boardThe Roast, which is brutal by design

How it fits your workflow

  1. New idea at the end of a long solo day. Run a Quick Take. ~2 minutes. Kill or commit before you sleep on it and over-invest.
  2. If it survives, run the full 9-question flow. ~15-20 minutes. Let it disagree with you on buyer, pricing, and scope.
  3. Export the playbook to your build tool. You’re now building against a plan, not a mood.
  4. Take the generated Mom Test questions to 3 real people. The interviews you can’t afford to waste are now pointed at the right buyer.
  5. Iterate or kill on real signal, not on how attached you’ve become.

No cofounder to convene. No team meeting. Just the structured pushback you’ve been doing without.

Start with Quick Take

Free tier: 3 credits/month, enough for a Quick Take and one decision. Paid: $5 for a one-off Quick Take on your next idea. Validate your business idea before you commit the only resource you have, which is you.

Frameworks you’ll use

  • The Mom Test. So your few precious customer conversations actually tell you something.
  • Van Westendorp pricing. For pricing without a partner to argue you off your guess.
  • Jobs to be Done. For figuring out what your buyer is really hiring you to do.

Not the right fit if…

  • You want a warm brainstorm partner who riffs along with you. Try Buildpad instead.
  • You’re already past product-market fit and just need growth. This is a pre-PMF decision tool.
  • You find blunt feedback demoralizing right now. ShipFit is built to disagree, and if that’s wrong timing for you, that’s fair.

Frequently asked questions

I'm solo. Isn't this just me talking to myself with extra steps?
No. The point is that it does not agree with you. The frameworks (Mom Test, Van Westendorp, JTBD) reach conclusions your own optimism won't. When the input fails the checks, you get a Needs Major Pivot or Don't Ship verdict. That is the cofounder you don't have telling you no.
How is this different from asking ChatGPT to critique my idea?
A general chat agrees with whatever framing you give it. ShipFit runs 9 forced, sequential decisions and applies specific frameworks to each. You can't talk it into a Promising verdict, and it won't drift into being supportive.
I don't have time for a long validation process. I'm doing everything alone.
That's the design. Quick Take is ~2 minutes. The full playbook is ~15-20 minutes. Compare that to the week of solo build time you'd spend on an idea that a 2-minute check would have killed.
What does it cost for one person?
Free tier covers 3 credits/month. Paid packs start at $5 for a one-off Quick Take, $10 for a full playbook. No team seats to buy. Check current pricing on the app.
Does this replace talking to real customers?
No. As a solo founder you still have to get the idea in front of real humans. ShipFit makes sure you ask the right questions (see the Mom Test) and that you're not validating the wrong buyer before you waste interviews.
Related on ShipFit

Keep exploring

Master guide
Validate your business idea

The 9-step playbook from market verdict to ship-ready spec.

Framework
The Mom Test

The Mom Test is Rob Fitzpatrick's framework for customer interviews that generate real signal. Not praise. Three rules, applied step-by-step, with examples.

Framework
Van Westendorp Price Sensitivity Meter

The Van Westendorp framework uses 4 questions to surface a defensible price range for any product. Here's how to run it, interpret results, and avoid the cheapest mistakes.

Guide
Market Research

Most founder market research is a TAM slide that nobody believes. The numbers that actually matter are smaller, harder to defend, and tell you whether the market exists for the ten-customer version of your business.

Guide
Idea Validation

Most founders confuse idea validation with idea-receiving-encouragement. The two have nothing in common. Here's what real validation looks like, and the four methods that actually produce it.

Calculator
CAC / LTV ratio calculator

Does each customer make you money? Or cost you money?

Q&A
How do you validate a business idea?

Run nine framework-backed decisions in order before writing code: define the buyer, prove the pain is painful, name the winning angle, scope V1 to the smallest test of the hypothesis, get behavioral evidence (paid pre-orders, signed letters of intent, or credit cards on file from a Fake Door Test), then ship. Most failed startups skipped at least three of those nine. Plan to spend two to four weeks on this. It saves six to nine months of building the wrong thing.

For founders
indie hackers

For indie hackers who've wasted months on dead ideas. ShipFit forces 9 decisions before you write a line of code. Proven frameworks, exports to Cursor.

Comparison
Buildpad

If you want a conversation partner, Buildpad. If you want to stop researching and ship, ShipFit. Both solve different problems for different founders. Don't pick on hype.

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