Comparison

Construction Guru vs builDx

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

Head to head
About

Construction Guru

This comprehensive construction calculator offers a suite of tools for measurements, framing, and trigonometry. It provides visual previews, code compliance checks, and offline functionality, all accessible through a one-time purchase.

Highlights
  • Feet-inch-fraction math
  • Framing and rafter calculations
  • Unit conversions
  • Trigonometry functions
  • Code compliance checks
  • Offline functionality
  • Visual layout previews
Read full description

A complete construction calculator. One price. No subscriptions. $19.99. One time. Every feature. No subscription. Ever. Try everything free for 30 days. No credit card required. WHAT'S INCLUDED Core Calculator - Feet-inch-fraction math - Length, width, height, area & volume - Unit conversions (imperial & metric) - Triangle solver (SSS/SAS/ASA/AAS/SSA) - Paperless tape - 9-slot memory Framing Module - Right-angle solver (pitch, rise, run, diagonal) - Rafter calculator with bird's mouth details - Hip/valley rafters with backing angles - Stair calculator with IRC code compliance - Stringer cutting guide - Stud calculator with sheet count - Floor joist calculator - Baluster spacing with code checks - Fence project planner (multi-run, gates, shared corners) - Compound miter calculator - Rake wall calculator - Roofing estimator Tools Module - Trigonometry (sin/cos/tan/asin/acos/atan) - Board feet with species pricing - Circle & arc calculator - Percentage & square root BUILT FOR THE JOBSITE - Large touch targets that work with gloves - High contrast display readable in sunlight - Keep-screen-on mode - Works fully offline - Every calculation feels instant WHAT MAKES IT DIFFERENT - Visual layout previews and diagrams - Shareable results with professional formatting - IRC & IBC code compliance flags - Configurable fraction resolution (1/16", 1/32", 1/64") - Rounding indicators show when a measurement falls between fraction marks - Live-updating guided calculators - 4 themes and 6 button styles - Auto-saves your work

About

builDx

Features
Read full description

builDx is a construction management app for contractors, site managers, and builders - with a construction calculator, cost estimator, and site diary built in. Your data never touches our servers. It lives on your device and your Drive. CONSTRUCTION CALCULATOR & ESTIMATOR Generate detailed cost estimates for any project. Choose South Asia (Nepal/India) or Global (USA/Australia/Europe) modes. Break costs down by material, labour, and phase - then export a professional PDF to share with your client. Economy, Standard, and Premium tiers built in. MATERIAL & LABOUR COST TRACKER Log every material purchase and labour expense against a vendor. Track unit costs, quantities, and totals. Know your real building cost at every stage - not just at the end when it is too late. VENDOR & BUDGET MANAGEMENT Build your vendor list, manage advance payments, and track outstanding balances. Full financial report per vendor - expenses vs. paid vs. balance due. SITE DIARY & PHOTO LOG Record daily site updates with photos. A timestamped construction log for milestones, delays, decisions, and progress shots. DRAWINGS & DOCUMENT STORE Attach floor plans, elevations, structural drawings, electrical layouts, and PDFs to your project. All files, one place. WORKS WITHOUT INTERNET No wi-fi on site? builDx runs fully offline on your device. Everything is stored locally. When you are connected, sync to your own Google Drive with one tap. YOUR DATA NEVER LEAVES YOUR HANDS There is no builDx server. No account required to start. Your project data syncs to your personal Google Drive - a folder you own, control, and can access anytime, even without the app. We never see your data. Built for the people who actually build things.

Screenshots

Construction Guru4 screens
builDx4 screens

Verdict

The call

The clearest difference is in-app purchases: builDx at none against Construction Guru's 1. builDx also leads on iOS requirement (13.0 vs 17.0). Construction Guru's advantage is update cadence (daily vs every 3 days). On price, ads 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. Construction Guru sells 1 one-off in-app purchase. builDx asks for nothing beyond the download.

UpkeepUpdate frequency

Construction Guru ships an update daily, builDx every 3 days. The most recent releases landed on October 28, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 6 level
Construction Guru versus builDx: the parameters behind the verdict, then further details
ParameterConstruction GurubuilDx
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyDaily — betterEvery 3 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size4 MB34 MB
Age rating4+4+
DeveloperJaime McGauleySoft Crunch

In-app purchases

1 purchases

Construction Guru

One-time1
  • Full Access Unlock$19.99
None

builDx

No in-app purchases

Questions

Is Construction Guru free?
Construction Guru is free to download, with in-app purchases available.
Is builDx free?
builDx is free to download, with no in-app purchases.
Do Construction Guru or builDx have ads?
Neither Construction Guru nor builDx shows ads.
Which is updated more often, Construction Guru or builDx?
Construction Guru ships an update daily, and builDx every 3 days. Most recently, Construction Guru was updated on October 28, 2026 and builDx on October 16, 2026.

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