Know which channels grow MRR — without a data team.
As a founder, you're the growth team, the finance team and the data team. You don't have weeks for an attribution project or budget for an analyst. Signal Sparrow connects to Stripe in 30 minutes and tells you, in plain numbers, which channels produce paying customers and payback — so you can spend with conviction instead of guessing.
You're making budget calls on numbers you can't trust.
Early-stage founders get the worst of attribution: the highest stakes per dollar, and the fewest resources to measure it. Every tool assumes you have a data team. You don't.
Three dashboards, three answers
Meta, Google and GA4 each claim a different cost per signup, and none of them can see your Stripe MRR. You are left averaging conflicting numbers by hand.
No analyst to build the model
Real attribution usually means a data hire, a warehouse and weeks of SQL. As a founder, you need the answer today — not a Q3 data project.
Trials are not revenue
Ad platforms optimize toward the cheapest signup, so you scale campaigns that fill your trial list with users who never pay — burning runway you cannot spare.
The three answers you actually need.
Which channels grow MRR
Spend → Stripe MRR per channel, so you double down on what produces paying customers and cut what doesn't — no guesswork.
Whether it pays back
Real CAC and payback in months, reconciled to Stripe, so you protect runway and know when a channel is actually profitable.
Whether they stay
Cohort retention and LTV:CAC by acquisition source, so you fund the channels that bring customers who expand — not churn.
From signup to answer, without an analyst.
Connect Stripe
One-click, read-only. Your real revenue becomes the source of truth — no API keys, no engineer, no CSV exports.
Add one snippet
A lightweight first-party snippet captures the clicks GA4 and pixels miss, from your own domain.
See what pays
Spend, MRR, CAC and payback per channel appear automatically — reconciled to Stripe and ready to act on.
The full attribution stack, self-serve.
No modules to buy separately, no enterprise upsell — it's all included and live in 30 minutes.
Spend with conviction, protect your runway.
Illustrative figures based on typical results when founders reallocate budget using revenue-based attribution instead of pixel estimates.
Numbers you can put in a board deck.
When an investor asks about CAC payback or which channel is driving growth, you need an answer you can defend. Signal Sparrow reconciles every figure to Stripe — attributed plus direct/unknown equals your net MRR for the period, to the cent. No black-box score, no inflated ROAS: the numbers you report are the numbers in your Stripe account.
Priced and built for early-stage SaaS.
Signal Sparrow is purpose-built for subscription businesses billing on Stripe — not a Shopify tool retrofitted for SaaS, and not an enterprise platform that needs a sales call to see a price. Public pricing, month-to-month, and a free tier so you can prove value before you spend.
Start free, no sales call, no demo gate
See the price before you sign up
Setup in 30 minutes, not a quarter
MRR, expansion and churn understood correctly
Start free, upgrade when it's paying for itself.
Public, month-to-month pricing that scales with your events — not your headcount.
Answers before your next standup.
Connect Stripe, add the snippet, connect your ad accounts over OAuth — and see which channels grow MRR, all before lunch. No implementation project, no onboarding fee, no sales call. Just the numbers you've been missing.
Questions, answered.
Everything teams ask before switching their attribution to Stripe truth. Still curious? Talk to us.
No — that's the point. Signal Sparrow is self-serve: connect Stripe and add one snippet, and it computes attribution, CAC payback and LTV automatically. There's no warehouse to build, no SQL to write and no analyst to hire.
GA4 measures traffic and events, but it can't see your Stripe MRR — so it can't tell you which channels produce paying customers or when they pay back. Signal Sparrow starts from real subscription revenue and attributes it to the channel that earned it.
Yes. CAC, payback in months, ROAS and LTV:CAC are calculated per channel from your Stripe data automatically and kept up to date — no modeling, no manual refresh.
Yes. There is a free tier to start, public month-to-month pricing with no sales call, and plans that scale with your events rather than charging per seat — so it fits a founder budget from day one.
Yes. Because every number reconciles to Stripe to the cent, you can confidently report CAC payback, ROAS and channel-level growth in a board deck without worrying the figures will not hold up.
About 30 minutes. Connect Stripe read-only, drop in the first-party snippet and authorize your ad accounts over OAuth — you will see your first reconciled attribution the same day.
Ready to see which ads actually pay?
Start free, connect Stripe in 30 minutes, and get attribution that reconciles to the cent.
- Free to start — no credit card
- Live data in 30 minutes
