WE DON’T SELL ACTIVITY.
Ads running isn’t the goal. Content published isn’t the goal. Reports delivered aren’t the goal.
The number is the goal.
We start from the outcome you need, and work backwards to what the funnel has to do.
We measure the things that move that outcome, and ignore the things that don't.
Our performance fee sits behind the agreed target. Miss it, and we refund it.
MOST AGENCIES SELL THE WORK.
WE SELL THE RESULT.
Same disciplines. Completely different thing being promised.
- Impressions
- Posts
- Clicks
- Meetings
- Reports
- Customers
- Revenue
- CAC
- ROAS
- The number
WE PUT OUR FEE AT RISK.
Before anything starts, we agree in writing what success is: the number, the timeframe, and the conditions it depends on.
If the campaign misses that target under those conditions, our performance fee is refunded. Your media spend is your own — we’re putting our pay behind the result, not underwriting your budget.
NO MYSTERY. JUST THE MATH.
Four steps, in this order, every time.
- 01
Set the number
We agree one measurable outcome, and the conditions it depends on.
- 02
Model the economics
CAC, order value, margin — what the funnel has to do to get there.
- 03
Build the machine
Creative, media, landing pages, testing and optimisation.
- 04
Measure the outcome
Against the agreed number. There's no second definition of winning.
PUT YOUR NUMBERS IN.
See what your current economics can support before you talk to us. If the maths doesn’t work, you’ll know in three minutes rather than three months.
Run the Crost Diagnostic →Free · Indicative · No commitmentNot generic screenshots. The actual product.
You put in what you know. It shows you the target, the media it would take, and the arithmetic in between.
Where your inputs don’t support an answer, it says so — it never fills the gap with a number.
÷ 90 days = $4,000 / month
AI CAN EXPLAIN THE MATH.
IT DOESN’T MAKE THE MATH UP.
Your model is calculated from your inputs by a fixed, versioned formula. The AI is handed the finished numbers and asked to put them in plain English — it never sees your raw inputs, and it can’t change a figure.
Every result shows its own working.
GOOD FIT?
The common thread isn’t the industry — it’s that you can already measure what a customer is worth.
You know your product economics and need acquisition that stays profitable at volume.
You have a measurable funnel, a real LTV, and a growth target with a date on it.
You need acquisition that survives past the first click — funded accounts, not signups.
If the outcome can be counted, we can probably model it. The diagnostic will tell you.
WE’RE PROBABLY NOT FOR YOU IF…
- You want "brand awareness" with no measurable definition.
- You want 10,000 followers.
- You want someone to boost your posts.
- You're looking for the cheapest agency in the room.
- You don't know what success means yet.
None of those are bad things to want. They’re just not things we can put our fee behind — so we’d be the wrong agency to sell them to you.
WHAT’S THE NUMBER?
Give us the target. We’ll tell you whether we’re willing to bet on it — and show you the maths behind the answer.
The diagnostic takes about three minutes. Applying takes one.