App Idea Validator: Score Your Software Idea /100

App Idea Validator

Before you spend a dollar building, pressure-test the idea itself. Rate your app or software idea across the six dimensions investors and product teams actually weigh, problem, market, edge, money, competition and fit, and get a directional score out of 100 with the weakest link called out.

§ · written guide

How to use the App Idea Validator

This validator gives your app or software idea a directional score out of 100. You rate six dimensions as Weak, OK or Strong, worth 1, 2 or 3 points, and the tool rescales the total to 100 and names your strongest and weakest dimension. It is for founders and product teams who want a quick gut check before they spend money on a build.

Step by step

Rate the problem
Under Problem severity, pick Weak if the problem is a nice to have, OK if it is a real annoyance, or Strong if it is urgent and painful. Every dimension starts at OK.
Rate the market and your edge
Under Market size, choose between a niche, a sizable market or a large and growing one. Under Differentiation, say whether your approach is a copy of what exists, has some edge, or is clearly better.
Rate money and competition
Under Willingness to pay, pick Strong only if there is proven demand and a clear pricing model. Under Competition gap, pick Weak for a saturated space, OK for a contested one and Strong for a space that is wide open.
Rate your own fit
Under Founder-market fit, rate how well you know this market and whether you can execute in it, from outsider to deep expertise.
Read the score and the weak link
The result panel updates on every click. Look at the score, the verdict, and the Weakest dimension card, then work on that dimension first.

Reading the result

The score is the sum of your six ratings divided by 18, times 100, rounded. With every dimension left at OK the sum is 12, so the score is 67.
75 and above reads Worth building, 50 to 74 reads Refine before you build, and under 50 reads Rethink the idea. Raising two ratings from OK to Strong takes the default 67 to 78.
The lowest possible score is 33, not 0, because a Weak rating still counts as 1 point. The formula line under the score shows your actual sum out of 18.
The Strongest dimension and Weakest dimension cards name one dimension each. When several are tied, the first one in the list wins, so with all six at OK both cards show Problem severity.
The bars repeat each rating as Weak, OK or Strong so you can see the whole profile at a glance.

Tips and common mistakes

Rate the idea as it is today, not as you hope it will be. A Strong you cannot back with evidence inflates the score and hides the real weak link.
All six dimensions carry equal weight, so one Weak rating costs the same 5 or 6 points wherever it sits. Treat a Weak in Problem severity or Willingness to pay as more serious than the number suggests.
Use a different rating only when you can name the evidence, such as customer interviews, a waitlist or a competitor you have studied.
Run it twice: once for the idea as written and once for a narrower version aimed at one audience. Compare which dimensions move.

Privacy and limits

The score is worked out in your browser from the six buttons you click. Nothing is sent anywhere and nothing is saved, so reloading the page sets every dimension back to OK. The result is a gut check built only from your own ratings, not market data.

Back to the tool

How the app idea validator works

Great software rarely fails because of the code, it fails because the idea underneath it was never sound. This validator scores an app or software idea across the six dimensions that product teams and investors weigh again and again: how severe the problem is, how big the market is, how differentiated your approach is, whether people will pay, whether there's a gap in the competition, and how well you fit the market.

You rate each dimension Weak, OK or Strong, worth 1, 2 or 3 points. The six ratings are summed (6 to 18) and rescaled to a clean score out of 100. Equal weighting keeps it honest: a brilliant market can't paper over a problem nobody feels, and deep expertise can't rescue an idea no one will pay for.

score = round( (sum of 6 ratings ÷ 18) × 100 )
75+ worth building · 50-74 refine first · under 50 rethink

Once the idea holds up, the next questions are cost and scope. Estimate the build with the software development cost calculator, or decide whether to build at all with the build vs buy calculator. When you're ready to talk specifics, see our services.

App idea validator, FAQs

What score means my app idea is worth building?

75 and above signals strong fundamentals across all six dimensions, the idea is worth validating with real customer conversations and then building. 50 to 74 means there's genuine merit but at least one dimension needs strengthening first. Below 50 usually points to a fundamental gap, most often a weak problem or unclear willingness to pay.

Which dimension matters most when validating a software idea?

Problem severity and willingness to pay do the heaviest lifting. A hair-on-fire problem people already pay to solve survives a mediocre market or crowded field, whereas a large market means nothing if the pain is a mild nice-to-have. This tool weights all six equally so a single weak link is easy to spot.

Is this a real market study?

No, it's a fast, directional gut-check built entirely from your own honest ratings, not external data. Use it to surface the weakest part of your idea before you spend money. Confirm the real answer with customer interviews, a simple landing-page demand test, and a scoped build estimate.