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

    1.16.0

    • New Fencing calculator. Lay out a fence of one or more segments with posts, rails, and gates where you need them, then fill the bays with pickets and a mark list or with prefab panels and a bay schedule that shows the cut panel width. It also counts concrete bags for the post holes, adds optional cost, draws a typical bay, and exports a one-page PDF. The gate width you enter is the clear opening between the gate posts.
    • Stair balusters check the opening between treads. On Center and Fixed End Space now check the front space plus the back space, where one tread meets the next, against your maximum opening in the code check and the PDF. The stair PDF and notes now name the spaces Back space and Front space, and Front space sets the opening on the nosing side.
    • Spacing and Deck railing values are rounded once. In imperial, On center, Open space, and every mark are rounded once from the exact layout to your fraction setting, so none of them can land one step high anymore. In metric, Limit opening and Best fit no longer add an extra member at an exact boundary.
    • Clearer Rafter Length help. Help now says Rafter Length runs from the ridge center line to the building line, before the ridge deduction and without the overhang.
  • Version

    1.15.0

    • Spacing now draws your layout. A live diagram updates as you type, opens full screen, and exports to a PDF with an elevation and a mark schedule.
    • The Spacing keypad stays open. Results update on every key, Spacing opens with empty inputs, AC clears every input, the tape entry records every input you set and every result, and the screen background matches the other calculators.
    • Baluster marks no longer accumulate rounding drift. Each mark is worked out from the exact layout and rounded once, Fixed End Space uses the first and last space you enter, and you can now choose up to 12 balusters per tread.
    • Clearer baluster verdicts in the stair report. Modeled baluster spacing now reads [OK] within your maximum opening, [VERIFY] over it but within the 4-3/8 in (111.125 mm) stair guard allowance, and [FAIL] beyond that. Touching or overlapping balusters fail on the code check chip and in the PDF, and the Limit Opening PDF note says when you chose the baluster count.
    • Three metric stair limits now match the imperial code values exactly. Minimum tread depth is 254 mm, maximum total rise 3835.4 mm, and minimum stringer throat 88.9 mm, so a 10 in (254 mm) tread no longer fails in metric. A riser entered in cm or m at exactly 196.85 mm no longer warns.
    • Box and Frame Miter labels the side tilt. The diagram and the PDF print the side tilt, such as 50.0° from vertical, result cards show = only when they have a value, and saw limit warnings match the angle shown to the tenth of a degree.
    • Side dimension labels sit outside the on-screen diagrams. Area / Volume, Deck Materials, Rake Wall, Right Angle, and Roofing place side labels in a fixed margin clear of the drawing.
    • Typing over a measurement that ends in a unit starts a new value. After a value like 19 mm or 36 in, the next digit replaces it instead of adding to it.
  • Version

    1.14.0

    • New stair baluster layouts. Choose Limit Opening, Fixed End Space, On Center, or Best Fit, pick where your marks are measured from, and CutOnce gives you the running mark for every baluster on the card, on the tape, and in the stair PDF.
    • New Spacing calculator. Lay out pickets, shelf pins, holes, or anything else evenly along a run, and read cumulative tape marks from the leading edge, center, or trailing edge, with true horizontal clear space on sloped runs. Deck railings can now share one common on center across sections.
    • Safer stairwell openings and a fuller code check. The minimum stairwell opening now allows for the full tread run and the upper finished floor, and the stair report now checks guard openings, nosing, the 6 inch triangle, and headroom.
    • New Box and Frame Miter calculator. Building a box, planter, or sloped frame with any number of sides? Enter the sides and the tilt and CutOnce works out the saw table miter and blade tilt for every cut, and warns you when a tilt is past what your saw can do.
    • Clearer, more accurate hip and valley PDFs. We tightened the jack schedule, plate and datum marks, note rounding, and rafter length wording, and rebuilt the optimized cut map into a clean Qty, Size, Length, and Pieces table.
    • Birdsmouth warnings on your cut plans. Rafter and hip and valley cut plans now print a graded warning when a birdsmouth cut runs too deep for the rafter, so you catch it before the cut.
    • Better wall stud lumber lists. The wall stud PDF now calls out the pressure treated bottom plate as its own item instead of pairing it with untreated stock, so the purchase list is one you can actually buy and build.
    • More in Spanish. Masonry mortar product names and more PDF labels and notes are now available in Spanish.
    • Smoother purchases and setup. We made restoring a purchase more reliable and streamlined the trial and first run experience.
  • Version

    1.13.0

    • New wall-stud counter. Enter a wall's length, spacing, and height, add corners, and CutOnce gives you a stud count with top plates and waste figured in — then prints it to the tape and a PDF.
    • More accurate hip and valley roofs. We corrected edge lengths, angle notes, and rounding across hip and valley layouts — including metric — so your cut list matches the framing.
    • Your inputs stay put when you switch units. Flip between imperial and metric and the values you entered carry over instead of clearing.
    • Birdsmouth warning. CutOnce now flags when a birdsmouth cut would go deeper than your stock, before you make the cut.
    • Roof-plan PDFs in Spanish. Roof-plan notes are now available in Spanish.
    • Stability and polish. Fixed a rare roof-plan rendering crash and tightened rafter accuracy and layout.
  • Version

    1.12.0

    • Five memory registers. Store and recall up to five separate values with the new M1 through M5 keys, so you can hold a few running totals at once instead of just one.
    • New trig calculator. A dedicated Trig mode handles sin, cos, and tan plus their inverses, with degree or degrees-minutes-seconds entry, and your work prints to the tape and PDF like every other calculator.
    • Rake wall PDF. Export a rake wall as a dimensioned elevation with a full, paginated stud schedule you can hand to the crew or the yard.
    • Clearer rake wall angles. Cards, tape, and PDF now spell out which angle is the pitch off square and which is the bevel from the stud's edge, and any value that had to be rounded is marked so you know when to trust the exact number.
    • More accurate rafters. Ridge height now includes height above plate, ridge boards are sized from the real plumb-cut depth, board layout edges are corrected, and the lumber PDF now shows the length, spacing, and rafter-count assumptions behind the list.
    • Cleaner keypad labels. Separator keys now read ft-in and a/b across every calculator, matching the main keypad.
    • Your work is saved. If your phone closes the app to free up memory, CutOnce now brings back your inputs and results right where you left them.
  • Version

    1.11.0

    • Cleaner calculator layouts. Inputs in the Concrete, Masonry, Drywall, Paint, and Board Feet calculators are now grouped into clear, labeled sections, so it's easier to see what to enter and what the app gives back.
    • Know which cards to tap. Every value card now shows a pencil when it's an input you can edit and an = when it's calculated for you, with a quick tip the first time you see them.
    • A keypad you can feel. The number keypad now gives a light tap of feedback as you type. Turn it off anytime in Settings.
    • One consistent Clear key. The Clear key now works the same on every calculator: AC to start over, or C to clear just your current entry.
    • Better on tablets. Calculator layouts now sit centered on iPad and larger tablets instead of stretching edge to edge.
    • Safer stair plans. When a staircase is too tall to build as a single flight under code, CutOnce now flags it and shows how to split it into flights with an intermediate landing, instead of printing a plan you can't build.
    • Diagram and PDF fixes. Cleaned up overlapping labels on hip roof jack headers and on flush-mount deck stair callouts.
  • 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.