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BoolBul
BOOLBUL.The Retention Interceptor
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MRR & Revenue Tools

Recurring revenue is the pulse of subscription economics. Use these interactive financial models to calculate clean Monthly Recurring Revenue (MRR), Annual Recurring Revenue (ARR), expansion velocity, Average Revenue Per User (ARPU), and milestone run-rates without spreadsheet formula errors.

10 Browser-Native Calculators100% Free ยท Zero Sign-upVerified Formulas & Citations

Tools in MRR & Revenue

#1Free Tool

MRR Calculator

Calculate Monthly Recurring Revenue (MRR), subscriber counts, and blended ARPU across multiple tiers. Free interactive calculator for SaaS founders.

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#2Free Tool

ARR Calculator

Convert MRR into Annual Recurring Revenue (ARR), quarterly run-rates, and daily recurring velocity. Free instant calculator for SaaS teams.

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#3Free Tool

MRR Growth Rate Calculator

Calculate Month-over-Month (MoM) MRR growth rate, absolute dollar gains, and annualized compound growth rate (CMGR). Free SaaS tool.

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#4Free Tool

Expansion MRR Calculator

Calculate total expansion MRR, expansion rate percentage, and annualized upsell value across tiers, seats, and add-ons. Free interactive tool.

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#5Free Tool

MRR Movements Waterfall Calculator

Break down your monthly recurring revenue waterfall: Starting + New + Expansion - Contraction - Churn = Ending MRR. Free interactive tool.

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#6Free Tool

ARPU (Average Revenue Per User) Calculator

Calculate Average Revenue Per User (ARPU) and Average Revenue Per Account (ARPA) monthly and annually. Free interactive calculator for SaaS founders.

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#7Free Tool

Revenue Run Rate Calculator

Calculate your annualized revenue run-rate from recent monthly or quarterly performance. Instant, free financial modeling tool for founders.

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#8Free Tool

Annual vs Monthly Revenue Converter

Convert monthly subscription pricing to discounted annual plans. Calculate customer savings, upfront cash acceleration, and effective MRR.

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#9Free Tool

Subscription Revenue Forecaster

Forecast compound monthly recurring revenue over 12 months based on growth and churn assumptions. Free interactive SaaS financial projection tool.

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#10Free Tool

MRR Milestone Timeline Calculator

Calculate how many months it will take to reach $10k, $50k, or $100k MRR based on your monthly growth rate. Free interactive SaaS tool.

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BoolBul Retention Engine

Stop SaaS churn before it hits Stripe & Dodo Payments

Plug BoolBul into your cancel button. Capture honest exit surveys, offer reason-matched pauses and discounts, and comply with FTC Click-to-Cancel effortlessly.

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