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KnownSum — Startup Profile
Startup

KnownSum

Free US tax and money calculators

Finance & PaymentsEstimated
0 Momentum score
Signals per week, last 12 weeks
  • Launches
  • Growth
  • Product
  • Hiring & team
  • Money
  • News & stories
  1. Launches KnownSum launched on Product Hunt

Astracia Signal Score

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About the startup

Free US tax and money calculators, updated for the 2026 rules. Work out what you owe, what you keep, and what you can claim.

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

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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

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