# Layout Calc Pro — Sheet metal & pipe layouts

> Sheet metal & pipe layouts (iPhone/iPad app by 思源 李.)

- Source: https://appshunter.io/ios/app/layout-calc-pro/id6476074424 (this page in markdown: same URL + `.md`)
- Developer: [思源 李](https://appshunter.io/developer/1704804704)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 49 MB
- Languages: English, Chinese
- Released: 2024-02-29
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/layout-calc-pro/id6476074424/reviews.md

## What is Layout Calc Pro?

【App Description】
Layout Calc Pro is a cloud-based intelligent calculation platform designed for riveters, pipe fitters, sheet metal workers, HVAC specialists, insulation workers, and pressure vessel assembly technicians. It deeply integrates expert experience with a powerful calculation engine (built-in professional engineering calculator supporting trigonometric and inverse trigonometric functions), revolutionizing traditional manual layout calculations and drawings.

【Core Value】
1.Instant Precision Calculation: Input parameters and instantly get complex component unfoldings.
2.Efficiency Boost: Eliminate manual calculations and templates, greatly reducing cutting and prefabrication time, focusing on assembly and inspection.
3.Accuracy Assurance: Reliable calculation results reduce rework, scrap, and corrections.
4.Cloud Convenience: Access anytime, anywhere, with clear results and one-click export to DXF/CAD files, ready for CNC cutting.
5.After-Sales Support: 24/7 online support and video tutorials help you get started easily and quickly improve your skills.

【Application Scenarios】
1.Piping Projects: Accurate unfolding and cutting of elbows, tees, reducers, risers, supports, and other components.
2.Pressure Vessels & Boilers: Petal heads, cones, nozzle layouts, cylinder openings, reinforcement rings, and saddle plates.
3.Sheet Metal & HVAC: Duct fittings, hoppers, casings, round-to-square transitions, and custom-shaped components for insulation projects.
4.Steel Structures & Welding: Complex node plates, steel angle cuts, stair treads, and non-standard container shells.
5.Cable Trays: Rapid calculation of horizontal bends, vertical bends, tees, and reducers.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 1-Year VIP Membership | $19.99 | one-time |
| 3-Year VIP Membership | $44.99 | one-time |
| 2-Year VIP Membership | $34.99 | one-time |
| 1-Year VIP Membership | $55.00 | one-time |
| 3-Year VIP Membership | $154.99 | one-time |
| 2-Year VIP Membership | $104.99 | one-time |
| Three Day VIP | $5.00 | one-time |



## Version history (last 5 releases)

### 3.1.7 — 2026-06-29

Added sheet metal calculation for square tube oblique intersection with round tube.

### 3.1.5 — 2026-05-17

Added elbow support bracket calculation for sheet metal.

### 3.1.4 — 2026-05-10

Added eccentric fish belly elbow calculation to the sheet metal page.

### 3.0.4 — 2026-03-25

Calculation for the addition of head coiled pipes to pressure vessels

### 3.0.2 — 2026-02-04

Added Round-to-Oblong transition calculation.

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## More apps by 思源 李

- [珠子云计算](https://appshunter.io/ios/app/id6463767886)

All apps by 思源 李: https://appshunter.io/developer/1704804704

## Related topics

[layout calc pro](https://appshunter.io/ios/topics/layout-calc-pro) · [sheet metal calculator](https://appshunter.io/ios/topics/sheet-metal-calculator) · [sheet metal calculator pro](https://appshunter.io/ios/topics/sheet-metal-calculator-pro)

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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 2026-07-08.*