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CalcFree — Startup Profile
Startup

CalcFree

25+ free online calculators — no signup, 100% private

Finance & Payments

Astracia Signal Score

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About the startup

CalcFree offers 25+ free online calculators for health, finance, and math — all in one place. Health: BMI, Calorie, Ideal Weight, Body Fat, Pregnancy, Water Intake, Sleep Finance: Loan EMI, Compound Interest, Salary, Tax, Discount, Tip Math: Percentage, Age, Scientific, GPA, Grade, Unit Converter, Ratio, What makes it different: → Zero signup required → 100% free forever → Privacy-first: all calculations run locally → Google PageSpeed: 93/100 → SEO Score: 100/100 → Works perfectly on mobile

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Founder stories from Finance & Payments startups

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Retold founder accounts from startups in the same category, each linked to the original.

Story

Cory Zue sells a Django boilerplate, not a $10k MRR meter

Cory Zue says SaaS Pegasus now makes about 80 percent of his income as a one-time Django starter kit, after Place Card Me taught him to sell PDFs for about $5 and after 2021 product income of about $113,000 across his po

ProjectionLab hit $10k MRR after years of nights and weekends

Kyle Nolan says he built ProjectionLab for his own financial plan, did not expect others to want it, and reached $10,000 MRR after more than two years of solo nights-and-weekends work, with a stepwise chart he published

Jen Yip stayed a company of one at $45,000 ARR

Jen Yip says she ran Lunch Money as founder, engineer, designer, and support, and that by May 2020 the budgeting app had 600-plus users and $45,000 ARR. Later she wrote that paying subscribers crossed 1,000 and ARR $80,0

Brex changed co-CEOs when the company got too large for shared calls

Henrique Dubugras says he and Pedro Franceschi invented an internal-versus-external co-CEO split at Pagar.me, repeated it at Brex, then moved to a Chairman and sole-CEO structure as Brex 3.0 and a possible IPO made joint

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