Stop fixing
the wrong thing.

Your next feature can wait. NextConstraint finds the funnel leak costing you
the most. Ship one fix, then see if it worked.

Find my next fix

Connect your tools and check your leak for free.

Too many things to fix. Only one comes first.
ACQUISITIONMore traffic?

Is that really the bottleneck?

PRODUCTAnother feature?

Or more of the same?

ONBOARDINGA shorter setup?

Let your numbers decide.

RETENTIONOne more email?

What would it actually change?

NextConstraintExample analysis
Here's where to focus.

Trial → paid

Your most expensive funnel leak.

$1,240estimated opportunity / month
against your own history
ONE FIX TO TRYMove optional setup past the first useful action.
Your data. One priority.
Illustrative figures and recommendation. Explore the priority above.

Connect the tools you already use.

Dodo Paymentsstripe betaPostHogPlausibleVercel AnalyticsSupabase

From “what should I build?”
to one clear next step.

Your analytics show what happened.
NextConstraint helps you decide what to do about it.

Start with your numbers.
Not someone else's benchmarks.

Connect your payments, analytics, and Supabase. NextConstraint prices each funnel leak against your own history, so you can compare what each one costs.

Connect my tools →
Example connections
Stripe Connected
PostHog Connected
Supabase Connected
Example recommendation

Let people try the core feature
before completing their profile.

Focus: trial → paid conversion
Record when you ship. Then check what changed.
FindShipRe-measure

A recommendation.
Then a reality check.

Get one fix for the most expensive leak. Ship it, and check the funnel again after 30 days. If the pick isn't useful, dismiss it and move to the next one.

Try the example above →

A little less noise.
A lot more direction.

Explore an illustrative journey from finding a leak to checking the result.

Find

Put a cost on
the weak link.

Compare estimated revenue leaks against your own history. Start with the one that costs the most.

Estimated opportunity Example / month
Visitor → signup$310
Signup → trial$520
Trial → paid$1,240
Focus

Give your next
shipping session a job.

One recommendation for your costliest leak. A smaller decision, grounded in your numbers.

Example fix

Let people reach the core feature before completing their profile.

1. Move optional setup
2. Record the shipping date
3. Check again in 30 days
Learn

Shipping is the start.
Check what changed.

Re-measure the same funnel after 30 days. See the change rather than assuming the fix worked.

Trial → paid Illustrative comparison
8.2%Before shipping
→
10.4%30 days later

Example figures, not a promised result or proof of causation.

1 / 3

Find your leak free.
Go further when you’re ready.

Connect and check your leak for free. Paid access starts at $9 for your first month, then $39/mo.

NextConstraintFirst month
$9 then $39 / month

For founders with paying customers.

  • Your funnel leaks, priced against your history
  • One focused fix for the costliest leak
  • A fresh measurement 30 days after shipping
  • Cancel anytime through your billing portal
Find my biggest leak

Prefer to explore first? Try the free calculator

A few things to know.

How much history do I need?

If your tools hold at least two earlier months of history, your first leak can be priced the day you connect.

Do I need to install another tracking script?

No. Your traffic numbers come from Vercel Analytics, Plausible, or PostHog, which must already be on your site. NextConstraint adds no tracking script.

What if I disagree with the recommendation?

Dismiss it and say why: already fixed, can't fix right now, or incorrect data. It won't be picked again for 30 days, and the next most expensive leak takes its place.

Can I cancel anytime?

Yes. Open your billing portal from Settings. You keep access until the end of your paid period. You'll receive an email three days before your first full-price charge.

Find out which leak
costs you the most.

Connect your tools and check your leak for free. With at least two earlier months of history, your first leak can be priced the day you connect.

Find my biggest leak Try the free leak calculator
Start with your numbers. Choose paid access when you’re ready.