Decision Summary
Recovered customers at horizon
150.35
Retention lift compounds monthly, increasing both active customers and revenue.
SaaS Growth Metrics
Churn & Retention Calculator
Model churn improvements and estimate recovered customers and cumulative revenue lift over a chosen time horizon.
Customer Retention Horizon
Improved retention compounds the customer base over time.
StartM6M12
Base churn
735
Improved churn
886
Key Metrics
Improved churn rate
2.50%
Base ending customers
735.25
Improved ending customers
885.6
Cumulative revenue lift
$142,895.68
How to use it
- Enter active customers, current monthly churn, retention lift in percentage points, monthly ARPU, and the planning horizon. Even a 1-point monthly churn improvement can compound into a large revenue difference over 12 months or more.
- Read recovered customers at the horizon, improved churn rate, base ending customers, improved ending customers, and cumulative revenue lift. The longer the horizon, the more that a small monthly churn change compounds into a meaningful retention outcome.
- Use the cumulative revenue lift to judge whether retention work beats acquisition work. If a 1-point churn improvement produces more revenue than your next paid acquisition campaign, the retention project likely deserves priority.
- Turn the model into concrete action by mapping the lift to onboarding fixes, support response targets, save offers, or product reliability work. Then segment the math by plan or cohort because enterprise and SMB churn rarely behave the same way.
- Re-run monthly by segment and compare modeled lift to actual churn improvements. Track both ending customer counts and revenue lift so retention efforts are measured against cash impact, not just percentage slogans.
AI Integrations
Contract, discovery endpoints, and developer notes for agent use.
Always available for agents
AI Integrations
Contract, discovery endpoints, and developer notes for agent use.
Tool contract JSON
https://aibizhub.io/contracts/churn-retention-calculator.jsonStable input and output contract for this exact tool.
Human review
People can use the browser page to sense-check outputs and charts, but agents should still execute against the contract and discovery endpoints.
- /agent-tools.json - machine-readable tool index.
- /llms.txt - human-readable model discovery guide.
- /.well-known/webmcp.json - WebMCP capabilities manifest.
- /.well-known/ai-plugin.json - plugin-style discovery manifest.
{
"tool": "churn_retention",
"active_customers": 1200,
"monthly_churn_percent": 4,
"retention_lift_percent": 1.5,
"arpu_monthly": 129,
"horizon_months": 12
} Expand developer notes
Agent playbook
- Resolve Churn & Retention Calculator from /agent-tools.json and open its contract before execution.
- Validate inputs against the contract schema instead of scraping labels from the page UI.
- Open the browser page only when a person wants to review charts, assumptions, or related tools.
Agent FAQ
Should ChatGPT, Claude, or another agent click through the UI?
No. Start with /agent-tools.json, then follow the tool's contract URL. The page UI is for human review, not parameter discovery.
When do tools show Quick and Advanced?
Every tool opens in Quick Start first. Advanced Controls keeps the same scenario, reveals more assumptions or diagnostics, and every tool keeps AI integrations inline below the instructions.
When should an agent still open the browser page?
Open it when a human wants to sense-check the output, review the chart, or keep exploring related tools after the calculation finishes.
Questions people usually ask
Why do small retention improvements matter so much?
Because retention compounds. Saving even a small slice of customers or revenue every month can create a much bigger lift over a year than teams expect.
What is the difference between churn and retention?
They are opposite views of the same thing. Churn measures what you lose. Retention measures what you keep.
Should I look at customer churn or revenue churn?
Both can matter. Customer churn shows logo loss, while revenue churn shows how much money is walking out the door.
Can this help me prioritize a retention project?
Yes. It helps you see whether the likely lift is big enough to justify the work before you commit team time or budget.
Is this tool free and private to use?
Yes. AI Biz Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.
Is this professional advice?
No. Outputs are business planning estimates — not legal, tax, or accounting advice.
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