Hammer Construction Calculator vs InchWise
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hammer Construction Calculator
This app provides advanced construction calculations, including feet-inch-fraction math and specialized tools for various trades. It also offers material takeoff and PDF quote generation, with features for jobsite planning and notes.
- Feet-inch-fraction math with metric conversion
- 20 specialized trade calculators with diagrams
- Material takeoff and PDF quote generation
- Jobsite plans and notes with blueprint support
- Offline functionality
- Customizable rounding and unit support
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The construction calculator that finishes the job: feet-inch-fraction math, 20 trade calculators, and a material takeoff that turns into a professional PDF quote — all in one app. WHY PROS SWITCH TO HAMMERCALC FEET-INCH-FRACTION MATH, DONE RIGHT - Mix feet, inches, millimeters, and meters in one calculation - Tape-measure fraction strip: tap or slide to enter 1/16s faster than typing - Results in feet-inches AND metric, side by side - Custom rounding: 1/16", 1/32", 1/64", or decimal 20 TRADE CALCULATORS — EACH WITH A LIVE DIAGRAM - Framing: rafters (hip/valley/jack cut lists, birdsmouth), roof squares & flashing, wall framing with stud counts, rake walls - Stairs: rise, run, stringers — with IRC code checks built in (max riser, tread, headroom, 2R+T comfort) - Outdoor: decks, fences (incl. chain-link), concrete bags/yards/rebar, baluster spacing (4" sphere rule) - Finishes: drywall, paint, tile, flooring, siding - Layout & lumber: square footage with cutouts, board feet & cost, cut list optimizer (fewest boards, least waste), compound miter/crown, triangle & pitch, circle/arc layout - Every field label explains itself — long-press for a diagram FROM CALCULATION TO QUOTE — NO OTHER CALCULATOR DOES THIS - One tap sends any tool's material list to a project takeoff - Buy-list smarts: rounds up to lengths the yard actually sells, never orders short - Check off materials on site as you load the truck - Price book remembers what you paid last time - Add labor, markup, and tax — export a branded PDF quote with your logo - Share as PDF, CSV, or plain text PLANS & NOTES ON THE JOBSITE - Load blueprint PDFs and photos — auto-saves your page, zoom, and position - Job notes with one-tap capture of any calculation - Quick links to your building codes and span tables BUILT FOR THE FIELD - Works fully offline. No ads. No popups. No data collection. - Dark mode for early starts, haptic keys, 12 accent colors - English & Español — switch live in Settings - iPhone, iPad, and Mac PERFECT FOR Carpenters • Framers • Contractors • Remodelers • Deck builders • Estimators • Engineers • Machinists • Architects • Serious DIYers TRY IT FREE FOR 7 DAYS Full access to everything. No commitment — cancel anytime. A subscription is required after the trial. Auto-renews unless canceled 24 hours before the period ends. Manage or cancel in Settings > [Your Apple ID] > Subscriptions. Support: hammercalc@gmail.com Terms: https://www.hammerstorm.co/terms Privacy: https://www.hammerstorm.co/privacy
InchWise
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InchWise is the feet-and-inches calculator that stops being rented. Add 14' 3-5/8" to 9' 11-3/4", divide the result by 16" on centre, convert it to millimetres, and keep every step on a tape you can scroll back through, label and correct. That is arithmetic a builder does all day, and an ordinary calculator cannot do it at all. WHAT IT SOLVES • Roof and right angle - rise, run, diagonal, pitch in rise-per-foot and in degrees, common rafter, hip and valley • Stair layout - riser count, exact riser height, tread depth, total run, stringer length • Area and volume - rooms, walls with openings, slabs, footings, columns, circles and arcs • Materials - concrete in yards, metres and bags, studs at your spacing, drywall sheets, tile with waste, paint from a coverage rate you enter, decking, roofing squares A TAPE, NOT A SINGLE NUMBER Every entry stays on screen with its operator and the running result beside it. Label a line "back wall", fix a typo three lines up, and everything below it recomputes in front of you. This is the part a handheld with one display line has never done. EXACT, AND HONEST ABOUT IT Feet, inches and fractions down to 1/64 are held exactly, never as a rounded decimal, and every result carries a line restating the measurements it came from. A stair of 111" over 15 risers is 7.400" per riser, and InchWise says so - then tells you that 7-3/8" risers would leave you 3/8" short at the top. A wrong length gets cut into a real board, so nothing here is rounded quietly. YOUR LIMITS, NOT OURS The stair solver asks you for your own maximum riser and minimum tread. InchWise ships none of its own, and no tables of any kind, because rules differ from place to place and change over time, and a stale number inside an offline app is worse than no number at all. NO MONEY, ANYWHERE There is no currency field in InchWise and no totals in money. It measures and it counts; what those quantities are worth is your business, not the app's. EXPORT IS FREE. ALWAYS. Save your work as a named job, then export it as a printable PDF or a CSV, any time, behind no purchase. With no cloud in this version, that is also how you keep a copy. WORKS WITH NO SIGNAL Jobs, tapes and material lists are stored only on this iPhone. No account, no sign-in, no cloud and no server - so it works in a basement, on a roof, and in a van with no bars. FREE, WITH ADS - AND A WAY OUT InchWise is free and supported by Google AdMob. A banner sits on the jobs and settings screens, and a single full-screen ad can appear after an export file has already been saved. No ad ever appears on the calculator, on the tape, on the roof or stair solver, or while a result is on screen. One optional purchase removes all advertising forever and unlocks nothing, because nothing is locked. GOOD TO KNOW • iPhone, iOS 17 or later • Imperial and metric, mixed freely in the same expression • Fraction display from 1/2 to 1/64, your choice • Light and dark, Dynamic Type and VoiceOver supported • A sample job on first run, so you can see it working before typing anything • This version has no cloud sync, no iPad or Watch app, no camera and no money features
Screenshots
Verdict
The clearest difference is ads: Hammer Construction Calculator at none against InchWise's shown. Hammer Construction Calculator also leads on device support (3 vs 1). InchWise's advantage is update cadence (every 3 days vs every 6 weeks). On price, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Hammer Construction Calculator sells 2 in-app purchases, starting at $3.99 per month and InchWise sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Hammer Construction Calculator ships an update every 6 weeks, InchWise every 3 days. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | Hammer Construction Calculator | InchWise |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 39 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | garrett hiebert | orlando florez |
In-app purchases
Hammer Construction Calculator
- HammerCalc Monthly7 Days trial$3.991 Month
- HammerCalc Yearly7 Days trial$24.991 Year
InchWise
- Remove Ads$4.99
Questions
Is Hammer Construction Calculator free?
Is InchWise free?
Do Hammer Construction Calculator or InchWise have ads?
Which is updated more often, Hammer Construction Calculator or InchWise?
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