Simple pricing.
Every tool free to try, then one of two ways to unlock everything — whichever you'd rather do. No trial-ending surprises, no hidden tiers.
Free to try
3 full sessions every 30 days, every tool unlocked, no restrictions and no ads while you're using one. Between sessions, tools stay visible — you can see the real inputs — just not run a calculation until the next session or you unlock.
One time
Datum Tools Pro
$19.99
Pay once, yours forever.
Monthly
Datum Tools Pro Monthly
$2.99/mo
Auto-renews monthly, cancel anytime.
Both plans unlock the same thing: every Datum Tools calculator — Build, Code, and Cost — with no session limits, on web, iOS, and Android. Sign in with the same account anywhere and your unlock follows you. See our Terms and Privacy Policy for full billing and subscription details.