Get a BUILD IT or NOT VIABLE verdict before you build the app
Turn your app idea into a validation funnel that measures real buyer intent from paid traffic. In a few days, you'll know whether strangers reached for checkout, not just whether friends liked the idea.
One app idea included in the trial. Card required.
We're testing Will it sell? with Will it sell?
The product should pass its own test. We won't claim a BUILD IT verdict until real campaign data clears the same bar your ideas face.
When the campaign is live, this ledger should show spend, sample size, checkout-intent rate, confidence interval, and verdict — not a vanity counter.
“I spent 4 months building an app nobody wanted.”
Every indie builder knows this story. You fall in love with an idea, disappear into product work, launch — and hear crickets. The market feedback you needed on day one arrived after month four.
Validate the idea, not the code.
Test demand with a real funnel before writing a line of Swift, Kotlin, or React.
Measure money, not opinions.
Surveys are easy to answer politely. Checkout intent is harder to fake.
Decide with data.
A statistical verdict against real web2app benchmarks, not a gut feeling.
From idea to verdict in three steps
Bring one idea and a small ad budget. Will it sell? gives you the funnel, ads, tracking, and verdict framework.
Check the idea
Describe your app in a sentence. The AI checks pain severity, market size, willingness to pay, and ad reachability before you spend a dollar.
Launch your test kit
Generate a polished funnel, Meta-ready ad angles, and tracked links. A step-by-step checklist gets the campaign live without stitching tools together.
Read the verdict
Real visitors hit your funnel. The report shows clicks, signups, checkout intent, sample size, and a verdict you can defend.
The validation kit appears before you touch Claude Code.
The first win is speed: turn a one-sentence app idea into the assets you need to run a real demand test.
A hosted test funnel
Landing page, walkthrough, testimonial, pre-registration, and buyer-intent paywall generated from your idea.
Meta ad angles
Hooks, primary text, creative prompts, and tracked links so each ad lands in the right report column.
A verdict report
Checkout-intent rate, confidence interval, segment breakdowns, and a clear BUILD IT / NOT VIABLE readout.
Emails are cheap. Reaching for checkout is commitment.
Waitlist tools measure curiosity. Will it sell? measures buyer intent: visitors see your real pricing and decide whether to commit to buy, exactly like the app already exists.
In validation mode, no payment is taken from the visitor. The signal is the decision: visitors who move toward checkout are telling you they were ready to pay. They see the app is coming, join the launch list, and you learn the only thing that matters: would they buy?
Show the paywall. Never take the payment.
The goal is to measure purchase intent, not trick people. Visitors see pricing, make the decision, then hit a reveal screen before any payment is taken.
You won't be charged.
This app is being validated before launch. Your checkout intent tells the maker there's demand, and you can join the list to be notified when it ships.
A complete idea-testing toolkit
Stop duct-taping landing-page builders, survey tools, and spreadsheets together.
AI idea check
Scores your pitch through a paid-acquisition lens and suggests stronger directions before you spend on ads.
Instant funnel
A polished multi-step product funnel — hero, walkthrough, testimonial, pre-registration, paywall — generated and hosted for you.
Ad angles & creatives
Multiple tested ad hooks with AI-generated images and paste-ready Meta copy. Up to 50 assets/month.
Buyer-intent paywall
Real pricing, real decision, zero charges. The strongest validation signal that exists short of launching.
Pre-registrations
Capture emails from interested visitors — your launch-day waitlist builds itself while you validate.
Verdict & insights
Statistical verdicts with confidence intervals, segment sweeps (ad × source × country), funnel drop-off, and audience answers.
Tracked links
Every creative gets its own link, so each visit and checkout attempt lands in the right report column.
Test up to 5 ideas at once
Run parallel experiments, kill the losers fast, and double down where the data says BUILD.
Meta campaign autopilot
Connect your ad account and Will it sell? builds the campaign for you — paused until you hit Publish — and syncs spend back automatically.
Most validation tools measure curiosity.
Will it sell? is built around the harder question: did strangers move toward paying for this thing?
Will it sell?
- Buyer intent
- Generated funnel + ads
- Verdict with interval
Waitlist tools
- Email interest
- You write the page
- No pricing signal
Surveys
- Opinions
- Easy to answer politely
- Weak buying signal
DIY Meta test
- Can work
- Manual setup
- You stitch data together
Cheaper than one month of building the wrong thing
Start with a one-idea trial. Choose monthly or yearly only when you're ready to run more tests.
Every trial requires a card and is limited to one app idea.
Trial included, not a free plan
Choose monthly or yearly at signup. Billing starts after the trial unless you cancel before it ends.
Pro
14-day trial, card required
For serious validation before you commit months to building.
Create first test- 14-day trial includes 1 app idea
- Test up to 5 app ideas once subscribed
- Buyer-intent paywall — test prices & payment intent without charging
- Market-research quiz — price, must-have features, who's buying
- Verdict engine + audience insights
- 50 generated ad assets per month
Grow
COMING SOONAnnual billing option planned
For when the verdict says BUILD — and it's time to sell.
- Everything in Pro
- Real paywall — sell online with a Stripe checkout
- Entitlement API — verify purchases from your app
- Up to 15 app ideas
- 500 generated ad assets per month
Questions, answered straight
No fine print surprises.
You don't need the app — you need the demand signal. Will it sell? generates a funnel, Meta ad angles, tracked links, and a verdict report. You send a small paid-traffic test to the funnel and watch whether strangers move toward checkout.
It's a pricing screen where visitors decide whether they would buy. In validation mode, the checkout action records intent and routes them to a reveal screen explaining the app is being validated before launch. They can then join the notification list.
A one-sentence idea and a small ad budget. Most early reads can start with $50–150 in Meta spend over 3–5 days, then you can extend the test if the signal is promising but the sample is still thin.
We measure every step of the funnel: ad click, page engagement, signup, paywall view, and checkout intent. The report shows the conversion rate, sample size, confidence interval, segment breakdowns, and a clear BUILD IT / NOT VIABLE recommendation.
No. There isn't a forever-free plan. New accounts start with a 14-day trial that requires a card and is limited to one app idea. Choose monthly or yearly at signup; billing starts after the trial unless you cancel.
You can create one validation funnel, generate ad angles, capture waitlist interest, and see how the workflow fits your idea. Pro unlocks more ideas, buyer-intent paywalls, market-research questions, and the full verdict workflow.
Yes. The trial is card-backed. Choose monthly or yearly when you start; cancel before the trial ends and you won't be charged.
One generated ad creative — an AI image plus paste-ready Meta copy for a specific angle. Pro includes 50 per month, which is plenty to test several hooks across multiple ideas.
That's coming with the Grow plan: a real Stripe checkout and an entitlement API so you can sell and verify purchases from your app the moment the verdict says BUILD.
No code required. You bring the idea; Will it sell? builds the funnel and ad angles. You'll still need to launch or connect the ad campaign, but the checklist keeps the setup concrete.
Any app idea — iOS, Android, or web. You're validating demand for the concept, so the underlying platform doesn't matter at this stage.
Always. Choose monthly or yearly billing; cancel before your trial ends and you won't be charged. No fine print, no retention games.
You should still review your ad copy and funnel against Meta's current policies and your local rules. The product is designed to avoid collecting payment during validation, but it doesn't replace legal or platform-policy review.
Don't waste the next 4 months building the wrong thing
Create the funnel. Run the ads. Decide with evidence.
One app idea included in the trial. Card required.