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CutMath Support
Questions, ideas or a bug to report? Check the answers below or send us a message. We read everything. Contact: hello@cutmath.app
01Questions and answers
How do I type a mixed number like 3⅜?
Type 3, tap and, type 3, then tap /8. The denominator key finishes the fraction.
How do I enter feet and inches, like 5′ 3⅜″?
Type 5, tap ′ (feet), then type the inches as usual: 3 and 3 /8. You can also mark inches with ″.
What if my denominator isn't 2, 4, 8, 16, 32 or 64?
Use x/y: type the top number, tap x/y, then type the bottom number (e.g. 7 x/y 13).
Why are some keys dimmed?
They don't make sense at that moment (for example a second denominator), so CutMath dims them to prevent mistakes. Tapping one gives a little shake.
How do I switch between mixed, improper and decimal?
Tap the answer, or the Mixed chip under it. Tap the unit chip to switch between feet-inch and inches (or sq ft and sq in).
What is the "≈ nearest 1/16" line?
When an exact answer falls between ruler marks (like 6 6/7″), CutMath also shows the nearest 1/16″ mark you can actually measure. With CutMath Pro you can choose 1/8, 1/32 or 1/64 instead.
How do I reuse an earlier answer?
Tap it in History. It drops into your current calculation.
How do I cut a board into equal pieces, or space balusters evenly?
Tap the Tools button (wrench and screwdriver) at the top, then Equal Spacing. Choose Equal Pieces to split a length into equal pieces, allowing for the blade kerf: you get the length of each piece and where to mark every cut. Choose Even Spacing for balusters, pickets or shelves: enter the opening and the item width, then either the number of items or the largest gap allowed. CutMath gives you the gap, the on-center distance and where each item goes. Equal Spacing comes with CutMath Pro.
How do I save and share a cut list?
Long-press any calculation in History and choose Add to Cut List, or tap Tools → Cut Lists → New List. Open a list and tap Share to send it by Messages, Mail or Notes. Cut Lists come with CutMath Pro, and lists you've saved always stay available.
How do I clear History?
Tap Clear at the top (or in the History sidebar on iPad).
I bought Pro but it's not showing, or I got a new phone.
Open Settings (gear icon) → Restore Purchases, signed in with the same Apple Account you bought with.
How do I get a refund?
Purchases are handled by Apple: request a refund at reportaproblem.apple.com.
Does CutMath collect my data?
No. No accounts, analytics or tracking. See the Privacy Policy.
Which devices are supported?
iPhone and iPad with iOS 17 or later.