Is tinymath free?
Yes — browsing and using the calculator templates is free.
Short, extractable answers
Frequently asked questions
Frequently asked questions about tinymath: pricing, accounts, accuracy, and what's coming.
Do I need to sign up?
No — every calculator template runs as soon as the page loads. An account (just an email, no password — we email a one-time code) is only needed if you want to collect templates to a dashboard for later.
Where do the numbers I type in go?
Nowhere but your browser. Nothing you enter into a calculator is sent to or stored by tinymath, account or not.
Can I save calculators for later?
Yes — log in and hit "Collect this template" on any calculator page. It shows up on your dashboard so you can find it again without hunting through the library.
Can I customise my own calculator?
Not yet. A block-based builder — your own inputs, operators, and pricing tiers — is in progress. For now, /build shows what's coming; start from one of the ready-made templates instead.
Can I embed a calculator on my own website?
Not yet — embedding is planned, but the mechanism (an iframe vs. a small JS snippet) isn't decided or built yet.
What industries are covered?
Eleven starter templates today: printing, solar, renovation/construction, logistics, HVAC/fabrication, insurance, mortgage, tax, healthcare, government/NGO eligibility, and food & nutrition.
How accurate is the math?
Every calculator runs on an exact-decimal engine (Rust, compiled to WebAssembly) instead of JavaScript's floating-point numbers, so results don't drift from rounding error the way plain JS math can.