Time for the full version
The free version is meant for private use and caps results at 1,000,000 after 31 days. A one-time licence removes both limits — and lets you use DeskCalc at work.
Use it at work
The free version is licensed for private use only. Any commercial use — office, practice, freelance — requires a licence.
No calculation limit
After 31 days the free version caps results at 1,000,000 — enough for private use, not for business figures. The full version has no ceiling.
Lifetime, no subscription
Pay once, keep it. Free updates within V11.x, and it runs on terminal servers with the multi-user licence.
One payment, no subscription
Single user · 1 license
$29.95 per license
- Commercial use
- Lifetime license
Colleagues need it too? Save 20% with 5
Ideal for a small practice or office
$23.99 per license
- Save 20% — $29.80 less than 5 singles
- Commercial use
- Lifetime licenses
10 licenses · whole office
$20.00 per license
- Save 33% — $99.55 less than 10 singles
- Terminal server ready
- Lifetime licenses
Your licence keeps its value
No subscription, no renewal. And when a new major version arrives, you get it at 30% off — with no deadline, from whichever version you own.
- One-time payment — pay once, use it for good
- Developed and supported for 25 years
- Runs fully offline — no cloud, no account
- Your calculations stay on your PC
- Free V11.x updates included
- Secure checkout · 30-day money-back · key by email
More than 10 seats? Running a terminal server?
Accounting firms rarely install a calculator on just one machine. Tell us how many seats you need and how you deploy — you get a written quote, not a sales call.
- Terminal server, Citrix and RDS — licensed per seat, not per machine.
- One licence file, one invoice — no key juggling for your IT.
- Purchase orders accepted — including government and non-profit terms.
Wondering what it saves across every seat? Open the ROI calculator — paper, ribbon and power add up fast when you multiply them by the number of desks.
Prefer to buy through the Microsoft Store, or need more than 10 licences?