Comparison

Hammer Construction Calculator vs FieldCalc Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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

About

FieldCalc Pro

Features
Read full description

FieldCalc Pro puts 28 professional trade calculators in your pocket — built for the job site, referenced to real codes, and 100% offline. ELECTRICAL (NEC 2023) Ohm's Law, Voltage Drop, Wire Sizing with DLO cable & parallel conductor support, Conduit Fill, Load Calculator, Motor FLA, Transformer Sizing, Breaker & Fuse Sizing, Power Factor Correction. HVAC (ASHRAE) BTU Heat Load, CFM Airflow, Duct Sizing, Equipment Sizing, Refrigerant Charge, Ventilation Rate (ASHRAE 62.1), Psychrometric, Heat Exchanger, Cooling Tower. CONSTRUCTION (IRC / ACI) Concrete Volume, Paint Coverage, Lumber Framing, Drywall Estimator, Roof Pitch & Area, Gravel & Aggregate, Brick & Block, Rebar Spacing (ACI 318-19), Staircase (IRC R311.7), Tile Estimator. EVERY CALCULATOR SHOWS ITS CODE Each result cites the applicable standard and edition year. Compliance badges show whether a calculator is code-compliant, standards-referenced, or an estimation tool. Wire sizes display both AWG/kcmil and mm² for international use. PRO FEATURES - All 28 calculators unlocked - Job-site photo attachments (up to 3 per calculation) - Batch calculations — compare up to 20 scenarios side by side - PDF reports with your company logo and license number - CSV export for estimating and documentation - Imperial/metric toggle on all results - Calculation history with search and trade filter - Unlimited projects - iCloud sync across devices FREE FEATURES - 6 calculators (2 per trade) with full code references - Unit converter with AWG-to-mm², HP-to-kW, and more - 1 project - Works 100% offline — no account, no internet, no tracking BUILT FOR THE FIELD - Large touch targets for gloves and sunlight - Input memory remembers your last values - Haptic feedback on calculations and compliance results - Spotlight search — find any calculator from your home screen - Quick Actions — jump to recent calculators from the app icon Start with a 7-day free trial. $4.99/month or $49.99/year after trial. Support URL: https://www.bytecovesoftware.com/fieldcalc/support Marketing URL: https://www.bytecovesoftware.com/fieldcalc Privacy Policy URL: https://www.bytecovesoftware.com/fieldcalc/privacy

Screenshots

Hammer Construction Calculator3 screens
FieldCalc Pro4 screens

Verdict

The call

The clearest difference is iOS requirement: Hammer Construction Calculator at 16.0 against FieldCalc Pro's 18.6. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Hammer Construction Calculator sells 2 in-app purchases, starting at $3.99 per month and FieldCalc Pro sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Hammer Construction Calculator versus FieldCalc Pro: the parameters behind the verdict, then further details
ParameterHammer Construction CalculatorFieldCalc Pro
PriceFreeFree
Rating3.0 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.0 — better18.6
Further details — not scored
Size39 MB2 MB
Age rating4+4+
Developergarrett hiebertTroy Bearden

In-app purchases

2 purchases

Hammer Construction Calculator

Subscriptions2
  • HammerCalc Monthly7 Days trial$3.991 Month
  • HammerCalc Yearly7 Days trial$24.991 Year
2 purchases

FieldCalc Pro

Subscriptions2
  • FieldCalc Pro Monthly7 Days trial$4.991 Month
  • FieldCalc Pro Yearly$49.991 Year

Questions

Is Hammer Construction Calculator free?
Hammer Construction Calculator is free to download, with in-app purchases available.
Is FieldCalc Pro free?
FieldCalc Pro is free to download, with in-app purchases available.
Do Hammer Construction Calculator or FieldCalc Pro have ads?
Neither Hammer Construction Calculator nor FieldCalc Pro shows ads.

Other comparisons