Comparison

Hammer Construction Calculator vs PDFReader

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

PDFReader

Features
Read full description

QPdfReader is an AI PDF Assistant that helps you understand documents in seconds. Upload a PDF and receive an automatic AI summary. Ask follow-up questions, translate important passages, and find the details that matter without reading every page. AI PDF Assistant • Instant AI Summary Turn long reports, contracts, articles, and study materials into a clear structured summary with key points, important details, action items, and open questions. • Chat with PDF Ask questions about a document and get context-aware answers based on its content. • Translate Documents Translate selected document content while preserving its meaning and context. • Find Key Details Faster Use AI to identify decisions, commitments, dates, tasks, and essential takeaways. Built for Reading • Open and read PDFs and supported document formats • Browse, search, and organize your files • Keep working with your documents in a focused reading experience PDF Tools When You Need Them Editing, signing, marking, exporting, and sharing tools are available from More, so the main flow stays focused on understanding your document first. For Students, Professionals, and Researchers QPdfReader is made for anyone reviewing research papers, study materials, business reports, contracts, or other important documents. Subscription QPdfReader offers optional subscriptions for expanded AI usage. Free AI usage is limited. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage subscriptions in your Apple ID account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Hammer Construction Calculator3 screens
PDFReader4 screens

Verdict

The call

The clearest difference is ads: Hammer Construction Calculator at none against PDFReader's shown. Hammer Construction Calculator also leads on device support (3 vs 1) and iOS requirement (16.0 vs 18.6). On price, update cadence and in-app purchases 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 PDFReader sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hammer Construction Calculator ships an update every 6 weeks, PDFReader every 2 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Hammer Construction Calculator versus PDFReader: the parameters behind the verdict, then further details
ParameterHammer Construction CalculatorPDFReader
PriceFreeFree
Rating3.0 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS16.0 — better18.6
Further details — not scored
Size39 MB14 MB
Age rating4+4+
Developergarrett hiebert克 谢

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

PDFReader

Subscriptions2
  • Monthly Pro$9.991 Month
  • Yearly Pro$49.991 Year

Questions

Is Hammer Construction Calculator free?
Hammer Construction Calculator is free to download, with in-app purchases available.
Is PDFReader free?
PDFReader is free to download, with in-app purchases available.
Do Hammer Construction Calculator or PDFReader have ads?
PDFReader shows ads; Hammer Construction Calculator does not.
Which is updated more often, Hammer Construction Calculator or PDFReader?
Hammer Construction Calculator ships an update every 6 weeks, and PDFReader every 2 months. Most recently, Hammer Construction Calculator was updated on October 7, 2026 and PDFReader on October 9, 2026.

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