Indie launch toolkit

Practical calculators for global SaaS and indie products

Estimate pricing, payment fees, tax exposure, infrastructure costs, API margins and growth metrics before you ship or scale.

Tools

Calculator library

SaaS / AI

SaaS Profit Calculator

Estimate subscription revenue, payment fees, refund loss, AI/API usage cost, infrastructure cost, gross profit, margin and break-even paid users.

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Payments

Overseas Payment Fee Calculator

Compare Stripe, PayPal, Lemon Squeezy, Paddle and WorldFirst fees by order volume, refunds and FX loss.

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App stores

App Store Revenue Calculator

Estimate real App Store or Google Play revenue after platform commission, tax and refunds.

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Pricing

Localized Pricing Tool

Generate localized subscription prices from a USD base price using exchange rates, purchasing power and psychological pricing.

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Growth

MRR ARR LTV CAC Calculator

Calculate MRR, ARR, LTV, CAC, payback period and LTV/CAC from your subscription metrics.

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Risk

Refund Impact Calculator

Model how refund rate, chargeback rate, payment fees and base costs affect net revenue and profit margin.

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Tax

VAT / GST Quick Check Tool

Estimate whether your sales profile may create VAT, GST or sales tax exposure based on region, customer type and annual revenue.

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Tax / Payments

Merchant of Record Comparison Tool

Compare Paddle, Lemon Squeezy, Stripe and Gumroad by fee structure, tax handling, payout amount and fit.

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Tax / Payments

Take-Home Revenue Calculator

Estimate real take-home revenue after platform fees, payment fees, tax, refunds and FX loss.

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Tax / Payments

FX Loss Calculator

Estimate how exchange rate spread, transfer fees and rate movement affect USD revenue converted into local currency.

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Operations

Uptime Cost Estimator

Estimate monthly infrastructure cost for hosting, database, CDN, logs, monitoring, backups and alerting.

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API

API Pricing Simulator

Model API usage, unit costs, plan limits and margin to estimate pricing per plan or per 1K requests.

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For pricing

Model product revenue, fees, tax exposure and margins before choosing a price point or payment stack.

For operations

Estimate infrastructure, uptime tooling and API delivery costs before usage grows.

Disclaimer

These tools are planning calculators, not financial, tax, legal or investment advice.