Rushiram Finance – Privacy-first, client-side financial calculators
Privacy-first calculators, but Google Sheets and Zerodha already handle SIPs and taxes.

Comprehensive Brazilian finance toolkit, but lacks novelty beyond localizing existing formulas.
Brazilian residents, accountants, and financial planners
Calculadora do Cidadão · Omni Calculator · Bankrate
Privacy-first calculators, but Google Sheets and Zerodha already handle SIPs and taxes.
No-signup financial calculators when NerdWallet and Bankrate already exist.
Ad-free alternative to ListenToTaxman, but 200+ calculators is noise without differentiation.
There’s nothing magical about the calculators themselves — they’re practical, bite-sized tools (SE tax, loan amortization, cash flow forecast, invoice generator) that you can use without signing up. The project's claim that an AI agent built and deployed the site is the only thing that makes this stand out to developers; if the repo and agent workflow are documented it’ll be a nice demo of automating a static site pipeline, but as a user product it’s largely a competent, familiar toolkit.
Yet another free calculator site among hundreds of identical alternatives online.
Browser-only LLC vs S-Corp calculator with NY/NYC tax modeling built in.