Construction Guru vs Carpenter Pro Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Construction Guru
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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
Carpenter Pro Calc
This comprehensive calculator is designed for construction professionals, offering a wide range of tools for measurements, estimations, and layout calculations. It provides both free and pro features, all accessible offline and without ads.
- Fractional math for measurements
- Unit conversion for various metrics
- Area and roof pitch calculations
- Stair and rafter layout tools
- Material and concrete slab estimation
- Framing and tile layout assistance
- Offline functionality
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Built in 2026, not 2012. Carpenter is the trade calculator for carpenters, framers, roofers, and remodelers who are tired of plastic-calculator emulators, ads mid-job, and per-trade upsells. One-time $14.99. Full Pro toolkit. All IRC editions. Forever. FREE CALCULATORS • Feet-Inch Calculator — fractional math (5'4 1/2" + 3'7 3/8") with configurable precision (1/2, 1/4, 1/8, 1/16, 1/32) • Unit Converter — Length, Area, Volume, Temperature, Weight, Pressure (ft↔m, in↔mm, ft²↔m², yd³↔m³, °F↔°C, lb↔kg, psi↔kPa) • Area Calculator — rectangle, triangle, circle, trapezoid • Roof Pitch Calculator — rise/run ↔ angle ↔ slope % PRO CALCULATORS — $14.99 one-time (V1.0) • Stair Calculator — total rise/run, treads, IRC R311.7 layout, feet-inch fractions • Rafter Calculator — common, hip, valley, jack, ridge cut, birdsmouth, tail cut, plumb/bevel • Material Estimator — board feet, lineal feet, sheet goods, waste • Concrete Slab — yards, 60lb/80lb bags, rebar grid, expansion joints • Framing Layout — wall studs (16/19.2/24 OC), plates, blocking, header sizing per IRC R602 • Tile Layout — area + grout joint + waste, per-box, layout offset • Roof Coverage — squares, bundles, ridge cap, drip edge, underlayment REFERENCE TABLES • IRC R602 — stud spacing • IRC R311 — stair geometry • IRC R905 — roofing material reference • Lumber dimensions (nominal vs actual) WHY CARPENTER? - No ads. Ever. - No accounts. No sign-in. - All IRC editions included — 2018, 2021, 2024 (no future upsell) - No subscription required — $14.99 once, forever - 7-day free trial of Pro - 100% offline — no signal needed on the jobsite - Dark mode + glove-friendly tap targets - Universal — iPhone + iPad in one purchase Same pricing model as Conduit — our sister electrician calculator. You buy it once, you own it forever. That's the deal. — LEGAL — Privacy Policy: https://panxiang1017.github.io/StaticPage/privacy-policy.html Terms of Use (EULA): https://panxiang1017.github.io/StaticPage/terms-of-use.html
Screenshots
Verdict
The clearest difference is update cadence: Construction Guru at daily against Carpenter Pro Calc's every 6 days. 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
Both are free to download. Construction Guru sells 1 one-off in-app purchase and Carpenter Pro Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Construction Guru ships an update daily, Carpenter Pro Calc every 6 days. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.
| Parameter | Construction Guru | Carpenter Pro Calc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Daily — better | Every 6 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jaime McGauley | 向 潘 |
In-app purchases
Construction Guru
- Full Access Unlock$19.99
Carpenter Pro Calc
- Carpenter Pro — Unlock All$9.99
Questions
Is Construction Guru free?
Is Carpenter Pro Calc free?
Do Construction Guru or Carpenter Pro Calc have ads?
Which is updated more often, Construction Guru or Carpenter Pro Calc?
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