Free to try. One-time purchase to own it.
Download CutOnce free and try every calculator for 7 days. The feet-inch-fraction calculator is free forever. Unlock the advanced calculators with a single $19.99 one-time purchase. No subscription. No recurring fees. No internet required to use it.
Open App Store →Your calculator shouldn't have a monthly bill.
Other construction calculator apps have moved to subscriptions, charging you every month for tools you've already paid for. Some even require an internet connection to verify your subscription, which means they don't work on the job site when you need them most.
CutOnce is different. Free to download. Try every calculator for 7 days before you pay a cent. Then one payment unlocks Full Access. Forever. And it works offline. No cell signal required.
after the 7-day free trial
- Unlocks all advanced calculators
- Stair calculator with PDF export
- Rafter calculator (common, hip, valley)
- Shop-ready offline PDF plans
- Right angle, material, and unit calculators
- Works offline. No internet required.
- Native on iPhone and iPad
- Free updates included
Frequently Asked Questions
Is CutOnce a subscription?
No. CutOnce is free to download with a 7-day free trial. The feet-inch-fraction calculator is free forever. Full Access (all the advanced calculators) is a one-time $19.99 in-app purchase, not a subscription. No monthly or annual fees, no recurring charges.
What's free and what costs money?
The feet-inch-fraction calculator is free forever. The advanced calculators (materials, concrete bags, paint, drywall, decks, stairs, rafters, and unit conversions) are free for the first 7 days, then require the one-time Full Access purchase.
What happens when the 7-day trial ends?
The advanced calculators lock until you make the one-time Full Access purchase. The feet-inch-fraction calculator keeps working free, forever. You're never auto-charged. The trial simply ends.
Does CutOnce work offline?
Yes. CutOnce works without an internet connection. Use it on the job site, in the basement, wherever you need it. No cell signal required.
Do I get future updates?
Yes. Full Access includes free updates and new calculators.
Do I need to create an account?
No. Open the app and start calculating.
What devices does it work on?
CutOnce works on iPhone and iPad.