Every update. No subscription.

Every update, free. Forever.

CutOnce is a one-time purchase, not a subscription. Every version below shipped to everyone who owns Full Access at no extra cost — new calculators, new features, and fixes, all included. Here's everything we've shipped, newest first.

  • One-time purchase — no subscription, ever
  • Every update included free, for life
  • New calculators added at no extra cost
  • Version

    1.10.0

    • Stairs now check the building code as you work. A new compliance panel grades riser height, tread depth, stringer throat, and total rise against IRC R311.7 limits, with headroom, riser variance, and comfort guidance alongside. The same summary prints on your stair PDF.
    • Your code, your values. The new Code Values section in Settings lets you review and override every code limit the app uses, in fractions, decimals, or metric, with a clear badge on anything you've changed and a one-tap reset per value.
    • Pick your riser count. Tap any compliant riser option in the results, or flip the new Comfort / Riser-limited toggle to solve with the fewest code-legal risers.
    • Flush (deck) mount done right. Stair plans now label which mount they assume, draw flush stringers with the correct layout and edge lengths, size the lumber purchase length from the actual cut, and spell out bearing and connector hardware.
    • Sharper stair numbers everywhere. Every printed dimension now rounds exactly once, at your fraction setting, so the screen, tape, and PDF always agree; metric code checks compare exact values; and the stairwell opening accounts for floor assembly thickness and nosing.
    • Keep the screen on while you calculate. A new setting, on by default, holds the display awake on any calculator screen so your phone won't dim mid-measurement while your hands are full. Turn it off anytime in Settings; battery saver and Low Power Mode still take over as usual.
    • Cleaner hip roof PDFs. Jack labels and the roof width dimension no longer overlap on exported plans.
  • Version

    1.9.0

    • New drywall sheet size. The Drywall calculator now includes the 4 x 9 ft US standard sheet, alongside 4 x 8, 4 x 10, 4 x 12, and 4 x 14.
    • Clearer live diagrams everywhere. Labels no longer overlap, the figure fills the full width of the card, and each calculator now shows a branded illustration before you start typing. On phones the diagrams are right-sized so nothing clips.
    • Roofing upgrades. Pitch now sits at the top of both Dimensions and Area modes, and on iPad you can pop the roof-plan diagram out into a larger sheet.
    • Reordered Toolbox. Calculators are grouped high-value-first, so the tools you reach for most are up top.
    • Sharper roof PDFs. Hip and Valley plans keep every angle label clear of the drawing, and the View PDF button appears only when your plan is ready to export.
  • Version

    1.8.0

    • Four new calculators. Roofing Materials (shingles, bundles, squares, sheathing, underlayment, and drip edge), Concrete Blocks & Brick masonry (block and brick counts, mortar, course layout, and rebar/grout), Crown Moulding compound-miter (saw miter and bevel angles, with a nested in-position cutting mode), and Concrete Footings.
    • Total Cost estimating, everywhere. A new Total Cost calculator plus optional price rows you can add to Concrete Bags, Paint, Drywall, Deck, Board Feet, Masonry, Rake Wall, and Roofing — your material cost prints right on the tape and PDF.
    • Live diagrams on every calculator. Rafters, Arc, Deck, Rake Wall, Right Angle, and the new calculators now draw your work as you type, with cleaner, more legible labels across the board.
    • Sharper output. Tape and PDF strings wrap instead of clipping at the page edge, help tips scroll when they're long, and the new calculators surface any missing inputs before you cut.
  • Version

    1.7.0

    • More live diagrams. The Area/Volume calculator and the Right Angle solver now draw your shape as you type: rectangle, circle, cylinder, and right triangle, with the calculated area or volume shown right inside the figure. On iPad they fill the space beside the keypad.
    • Decluttered Calculator keypad. The look-alike separators now read "ft-in" and "a/b", one smart Clear key shows AC or C as needed, and the memory keys tuck behind an "fx" toggle so the everyday pad stays clean.
    • Faster start. A new "What are you building?" step drops you straight into Stairs or Rafters with a worked example instead of a blank screen.
    • Tap the values you know. On the Right Angle solver, tap any two cards to enter what you know and CutOnce solves the rest.
    • Cleaner results, fewer interruptions. Empty rafter cards stay hidden until they have a number.
  • Version

    1.6.0

    • Live stair diagrams. The stair calculator now draws your staircase as you type: elevation, stringer, detail, and baluster views with pinch-zoom and a full-screen mode. The PDF uses the same geometry.
    • New Toolbox home screen. Every calculator now lives one tap away in the CutOnce Toolbox, grouped by the job you're doing.
    • PDF export now sits right with your results, and on iPad the running tape docks as a side panel so it never covers your work.
  • Version

    1.5.0

    • Long-press help is back on the dropdown input cards. Press and hold the Ridge Board and Rafter Depth pickers, or the balusters-per-tread field, to see the quick explainer again.
    • Behind-the-scenes reliability work so the calculators stay fast.
  • Version

    1.4.0

    • Concrete Bags now follows your unit system. Switch to metric and the calculator defaults to 30 kg bags and cubic meters, with a ready-mix suggestion above 1 m³. The volume card cycles m³, ft³, and yd³ in either mode so you can cross-check before you order.
    • Cleaner Concrete results. The duplicate volume cards are gone, and the volume card now flips between cubic yards and cubic feet with a tap.
    • Faster first launch. Language, unit system, and the safety disclaimer now live on a single Get Started screen, so you reach the calculator in one tap instead of three.
  • Version

    1.3.2

    • Bug fixes and stability improvements.
  • Version

    1.3.1

    • Bug fixes and stability improvements.
  • Version

    1.3.0

    • PDF preview before sharing. Stair and rafter PDFs now open in a preview sheet so you can verify the output before you send it.
    • Rafter calculator split into Hip Roof and Hip/Valley modes. Each mode has its own dedicated workflow so the inputs match the roof type you're framing.
    • Polished overlay icons. The floating tape and settings icons now fade gracefully into the content behind them instead of sitting on an opaque background.
  • Version

    1.2.0

    • Stair calculator allows you to customize the baluster count per tread.
    • Sub-calculators remember your inputs. Drywall, Paint, Concrete, Deck, Area, Volume, and the other More-tab calculators keep their values when you switch tabs and come back.
    • Cleaner numbers on result cards. Trailing zeros are trimmed automatically, so 6.50 reads as 6.5 and 7.000 reads as 7.
    • Pitch keypad cleanup. Removed the "in" key, since pitch is a ratio with no length unit.
    • Sub-calculator inputs ignore bare units. Typing just "in" without a number is treated as empty instead of a unit-only value.
  • Version

    1.1.0

    • 7-day free trial, then a one-time unlock. CutOnce is now free to download, and the main calculator stays free forever. Try Stairs, Rafters, Right Angle, Board Feet, and the full toolbox for 7 days, then unlock everything for life. No subscriptions, ever. (Previously-paid users keep full access automatically.)
    • Your paper tape is saved. Tape history now persists between app restarts, so yesterday's numbers are still there when you come back.
    • Fractions stay fractions. Type 2-1/8 + 5-3/16 = and you'll see 7-5/16, not a decimal. Decimal math still behaves the same.
    • Smarter rafter defaults. On-center spacing pre-fills to 16 in (or 400 mm in metric) for common rafters and hip/valley jacks. Change it anytime.
    • Fewer calculator surprises. Pasting negative numbers, mixed fractions with dashes, and curly-quote measurements (5' 6") all parse the way you'd expect. Tapping a field and typing replaces the old value instead of appending to it.
    • Bug fixes. Division of tiny metric values no longer throws false "Division by zero" errors, 90° pitches now register as vertical, area ÷ area and volume ÷ volume return proper scalar results, and a handful of parser edge cases (5., smart quotes, etc.) have been tightened up.