Free tools
Free tools for product teams
Genuinely useful calculators — no signup, no email wall. Built by the team behind AIOProductOS, the product OS that connects feedback, revenue, work, and code on one spine.
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MRR & ARR calculator
Get your monthly and annual recurring revenue, and project it 12 months out at your growth rate — with a live chart.
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Churn rate calculator
Turn customers and churned counts into churn rate, retention, average lifetime, and LTV — with a retention curve.
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RICE prioritization calculator
Score any feature by Reach × Impact × Confidence ÷ Effort and rank your backlog by value per unit of effort.
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Rule of 40 calculator
Add growth and margin to see if you clear the 40% health benchmark, with a live pass/fail gauge.
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SaaS stack cost calculator
Total what your product tool stack costs per year and compare it to one flat plan — representative list prices.
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Each tool runs the math in your browser — nothing is sent anywhere. They're free because the same thinking powers AIOProductOS: the metrics matter more when feedback, revenue, work, and code share one record.