Unit Economics
Calculate and optimize CAC, LTV, and payback periods to ensure your solopreneur business is actually profitable.
Free
Works with the AI tools you already use
Claude Code
Cursor
Codex CLI
GitHub Copilot
Gemini CLI+20 moreClaude CodeCursorCodex CLIGitHub CopilotGemini CLI
OpenClaw
Manus
Grok+17 agentsUnit Economics
Example session with this skill installed
I spent $500 on ads and $200 on tools this month. I spent 10 hours on marketing (my rate is $80/hr). I got 20 new customers. My SaaS costs $30/mo and churn is 5%. Is this sustainable?
- Read your context and instructions
- Compiled the unit economics
- Generated the document
I have calculated your unit economics based on a total acquisition spend of $1,500 and a monthly revenue of $30 per customer.
Unit Economics Snapshot
| Metric | Value | Status |
|---|---|---|
| Total Monthly Spend | $1,500.00 | Includes $800 in labor |
| New Customers | 20 | Monthly total |
| CAC | $75.00 | (Spend / New Customers) |
| ARPC | $30.00 | Monthly revenue per user |
| Avg. Lifespan | 20 months | (1 / 0.05 churn) |
| LTV | $600.00 | (ARPC * Lifespan) |
| LTV:CAC Ratio | 8.0x | Healthy (>3x) |
| Payback Period | 2.5 months | Healthy (<12 months) |
Analysis
Your unit economics are exceptionally strong. An 8x LTV:CAC ratio indicates that for every $1 you spend on acquisition (including your own time), you generate $8 in lifetime value. Your payback period of 2.5 months is well within the healthy range, meaning you recoup your acquisition costs quickly, freeing up cash flow for further growth.
Recommendations
Scale Spend: Since your LTV:CAC is significantly above the 3x benchmark, you can afford to increase your marketing spend or customer acquisition effort even if CAC rises slightly.
2.
Monitor Churn: At 5%, you are on the border of "Concerning." Reducing this to 3% would increase your LTV from $600 to $1,000 without increasing acquisition costs.
3.
Protect Margin: Ensure that the $30/mo ARPC covers your variable hosting and support costs to maintain a high contribution margin.
Next steps
- Audit your 5% churn to see if it's occurring in the first 30 days (onboarding issue) or later.
- Test a higher-tier plan at $50/mo to see if you can increase ARPC without spiking churn.
- Update these numbers in 30 days to see if the CAC of $75 holds at higher volume.
unit-economics.pdf
PDF · document
Example file from a real run - the skill writes it into your workspace.
Connects securely to your tools. The creator never sees your data.
About this skill
Stop guessing if your business is actually making money. This skill provides a rigorous framework for calculating and interpreting the unit economics of solopreneur and small-scale digital businesses. It identifies whether your customer acquisition costs are sustainable and if your lifetime value projections are realistic.
What it does
- Metric calculation identifies your CAC, LTV, and payback period using industry-standard formulas.
- Benchmark analysis compares your current metrics against healthy, concerning, and critical thresholds.
- Lever identification pinpoints which of the four growth levers (churn, ARPC, CAC, or volume) will yield the highest impact.
- Model adaptation adjusts formulas for SaaS, project-based services, or one-time product sales.
- Trend tracking structures a monthly dashboard to differentiate between seasonal noise and systemic issues.
How it works
- Input your current marketing spend, new customer counts, and churn data.
- The skill generates a Unit Economics Snapshot including your LTV:CAC ratio and payback months.
- Review the interpreted health status to see where your business model is fragile.
- Follow the prioritized levers to improve your contribution margin and sustainability.
Frameworks & tools
This skill uses standard financial modeling principles for solopreneurs, SaaS, and service businesses. It requires no specialized software beyond a basic spreadsheet or document for tracking results.
Why this beats prompting it yourself
Generic prompts often ignore the "hidden" costs of solopreneurship, like valuing your own time in CAC. This skill enforces strict definitions of what counts as marketing spend versus overhead, preventing the optimistic bias that leads to scaling unprofitable models.
Use cases
- Determine if your current ad spend is sustainable relative to your churn rate.
- Evaluate if a proposed price increase will sufficiently improve your LTV:CAC ratio.
- Calculate the true cost of customer acquisition including content creation and manual outreach time.
- Build a monthly reporting structure to monitor business health trends over time.
Known limitations
Does not provide tax advice or legal accounting services. Requires the user to have accurate raw data regarding marketing spend and customer retention.
How to install
Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.
- 1
Download the ZIP
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- 2
Unzip into your skills folder
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- 3
Ask your agent to use it
Restart the agent if it was already running. It picks the skill up automatically - no config needed.
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