Accumath™

Accumath is a full math engine for your own computer.

No internet required. Same answers on every machine. A lifetime license that belongs to you.

Become an early supporter — $25+ See full capability lists

What Accumath is

Accumath is a computer algebra system with an integrated notebook (accu_book). You install it on your machine. You work offline. You keep your files.

It is written in pure Rust. Numeric work runs on SoftFloat — software floating point — so the same equation with the same inputs produces the same bit-identical results on every computer. That is not “close enough.” That is the same answer.

It is air-gapped by design: no network call to stay licensed, no cloud license server, no black-box server heuristics guessing at your math.

One lifetime license belongs to one person. All current and future updates and upgrades are free for life with that license. You may move it to a new machine, but it is good for only one machine at a time.

What we are trying to achieve

Version 1 is air-gap completeness: everything on the ship list that can run offline, finished and gold-checked before we call it shipped. Not a thin demo. Not “buy now, wait for the real product.”

We also ship a large equation library with the product — about half a million unique parsed equations, already typed for search and use.

Why Accumath instead of the usual options

Where the build stands

109 built · 121 remaining · 230 total 47% of version 1 · updated 2026-09-19

Estimated ship date: January 2, 2027, if early-supporter sales fund the remaining work.

Public list numbering: built items are 1–109; still-building items continue as 110–230. See the Capabilities page.

Build status page · Complete built / still-building lists

Buy a pre-release license — $25+ for a lifetime license