# BuildCalc Lite — Sheet metal & pipe layout

> Sheet metal & pipe layout (iPhone/iPad app by 凌云 何.)

- Source: https://appshunter.io/ios/app/buildcalc-lite/id6790803507 (this page in markdown: same URL + `.md`)
- Developer: [凌云 何](https://appshunter.io/developer/1879789850)
- Category: Reference, Graphics & Design
- Price: $3.99
- Age rating: 4+
- Requires: iOS 16.6 · 3 MB
- Languages: American English, Arabic, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Greek, Hebrew and 20 more
- Released: 2026-07-20
- Data updated: 2026-09-07
- User reviews in markdown: https://appshunter.io/ios/app/buildcalc-lite/id6790803507/reviews.md

## What is BuildCalc Lite?

CraftCalc puts professional fabrication calculations in your pocket, working fully offline with no signup needed. Get traceable results, clear visual diagrams, and flexible export options for sheet metal, plate work, and site layouts.

Trusted by sheet metal workers, platers, welders, pipefitters, duct installers, and steel erectors, CraftCalc delivers engineering-verified formulas you can check on the spot. Every computation runs locally on your device, keeping project data private and available even without a signal.

Core Calculations

Square-to-Round Transition
Triangulation development for concentric or eccentric transition pieces with true length tables.

Cone Frustum Layout
Annular sector development for concentric and offset frustums, including mean diameter correction notes.

90-Degree Elbow Segments
Lobster back cutting layout for segmented bends, ideal for ductwork and pipe fabrication.

Cable Tray Bends
Offset and horizontal bend notch calculations for cable tray installers and site technicians.

Spiral Blade Flight
Screw conveyor flight development for auger and spiral blade fabrication.

Visualisation and Data

Every result includes plan view and development diagrams, key dimension cards, and formula basis notes. Auto-saved records let you review recent jobs, while favourites keep go-to formulas ready. View, manage, or delete individual record details at any time.

Export and Share

Export single calculation results as images, or compile your full history into a PDF report. Share via email, messaging apps, or save directly to your files for project documentation.

Personalisation

Adjust decimal precision from 0 to 4 places to match your shop standards. Switch between metric and imperial units instantly. Formula version disclosure gives you full transparency on the calculation basis.

Why CraftCalc

- Works offline: reliable on remote sites with poor signal
- Privacy first: no personal data collection or upload
- Professionally sound: verified formulas for on-site checking
- Visually clear: modern interface with logical information hierarchy

Suitable Applications

Sheet metal development, plate layout, welding fabrication, pipefitting, ventilation duct installation, structural steel erection, and construction site measurement.

Disclaimer

Calculation results are for reference only. Always verify against actual site dimensions before cutting. The developer assumes no liability for project losses resulting from the use of these results.

CraftCalc, professional calculations in your pocket.

## Chart rankings

- #133 in Top Paid · Reference (US App Store)


## Version history (last 2 releases)

### 1.1 — 2026-08-01

Bug fixes and detail improvements

### 1.0 — 2026-07-20

No release notes.

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- [RestoProfit](https://appshunter.io/ios/app/restoprofit/id6760305446)

All apps by 凌云 何: https://appshunter.io/developer/1879789850

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*