The Crimson Bench

ProMarketing · Simulator

Marketing Growth Simulator

Turn ad spend into a 12-month customer and revenue curve.

Assumptions

Customers (mo 12)

4841

MRR (mo 12)

$290,468

CAC payback

0.7 mo

MonthNewActiveMRR
Month 2500980$58,800
Month 45001883$112,990
Month 65002716$162,932
Month 85003483$208,958
Month 105004190$251,376
Month 125004841$290,468

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Every row, plus Excel/PDF export and AI analysis.

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Built by The Crimson Bench · Educational model, not financial advice

About the Marketing Growth Simulator

Model spend, CAC, churn, and ARPU forward a year to see your active customers and MRR — and whether your spend actually compounds or just treads water.

It's built for directional planning: change any assumption and watch the whole projection move, the way a seasoned operator pressure-tests a plan before committing capital. Everything is computed live in your browser — nothing is sent anywhere.

How the Marketing Growth Simulator Works

The model takes 4 assumptions and returns 3 headline metrics plus a full breakdown. Here is exactly what goes in and what comes out — no black box.

The Inputs

AssumptionExample value
Monthly spend$20,000
CAC$40
Monthly churn4%
ARPU / month$60

Worked Example

Every figure below is produced by the live model using the example assumptions above. Change any input in the simulator to see your own numbers.

Customers (mo 12)

4841

MRR (mo 12)

$290,468

CAC payback

0.7 mo

MonthNewActiveMRR
Month 2500980$58,800
Month 45001883$112,990
Month 65002716$162,932
Month 85003483$208,958
Month 105004190$251,376
Month 125004841$290,468

The Operator's Read

Spend builds to about $290,468 MRR by month 12. If active customers plateau, churn is eating your spend — fix retention before adding budget.

Assumptions & Limitations

  • The model is deterministic: it projects your inputs forward with clear arithmetic, not a Monte-Carlo or probabilistic forecast. It shows one scenario at a time — run several to bracket a range.
  • Defaults are illustrative benchmarks, not your business. Replace every field with your real numbers before drawing conclusions.
  • It abstracts away taxes, financing, seasonality, and one-off events unless a field explicitly captures them. Treat the output as a directional estimate.
  • This is an educational tool, not financial, investment, tax, or legal advice. Validate real decisions with a qualified professional.

Frequently Asked Questions

What does the Marketing Growth Simulator calculate?

Model spend, CAC, churn, and ARPU forward a year to see your active customers and MRR — and whether your spend actually compounds or just treads water. It takes 4 assumptions — Monthly spend, CAC, Monthly churn, ARPU / month — and returns Customers (mo 12), MRR (mo 12), CAC payback, along with a full projection table you can export.

How do I use the Marketing Growth Simulator?

Enter your own figures in the input fields above — Monthly spend, CAC, Monthly churn, and the rest. The model recalculates instantly and shows the resulting Customers (mo 12) and full breakdown. No sign-up needed to run it.

Is the Marketing Growth Simulator free?

Yes — you can run the simulator and see the headline results for free. Toolkit Pro unlocks the full projection table, Excel/PDF export, saved scenarios, and AI analysis: $180/mo, $1,728/yr, or unlock any 3 simulators for $20.

What's the difference between this and a free calculator?

A calculator answers one question. This simulator models the full picture — multiple linked assumptions, a projection table, and scenario comparison — the way an operator would build it in a spreadsheet, but instantly.

Who built the Marketing Growth Simulator?

The Crimson Bench's Ivy League-educated operators — the same people we deploy into C-suites. This is the self-serve version of a model they'd build inside a live engagement.

Is this financial advice?

No. The Marketing Growth Simulator is an educational modeling tool for directional planning — not financial, investment, tax, or legal advice. Validate any real decision with a qualified professional.

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The Crimson Bench · Est. 2002 · Founded in New York City

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