# Construction Master Pro Calc vs Lumen Layout

The clearest difference is price: Construction Master Pro Calc at Free against Lumen Layout's $4.99. Construction Master Pro Calc also leads on rating (4.8 vs 1.0) and ratings volume (41K vs 1). Lumen Layout's advantage is in-app purchases (none vs 10). On ads there is nothing between them.

Construction Master Pro Calc is free to download; Lumen Layout costs $4.99 up front. Construction Master Pro Calc sells 4 in-app purchases, starting at $4.99 per month. Lumen Layout asks for nothing beyond the download.

Construction Master Pro Calc holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Construction Master Pro Calc has 41K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Construction Master Pro Calc's written reviews are positive against 50% of Lumen Layout's.

Construction Master Pro Calc ships an update every 3 weeks, Lumen Layout every 3 months. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Construction Master Pro Calc | Lumen Layout |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.8 (41K ratings)](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/lumen-layout/id6739475851/reviews) |
| Number of ratings | **41K** | 1 |
| Positive reviews | **60.2% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#47** | — |
| Size | 111 MB | 13 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [The Sparky](https://appshunter.io/developer/1747077864) |

## What reviewers say

### Construction Master Pro Calc

[App page](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446)

**Currently charting:** #47 Top Grossing · Utilities (US App Store)

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

**Highlights:** Dimensional math and conversions, Right angle and rafter calculations, Area and volume solutions, Full trigonometric functions, Built-in user's guide and help, Save and share calculations, Project notes and attachments

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Full Access | $4.99 | per month |
| 1 Month Full Access | $4.99 | per month |
| 1 Year Full Access | $39.99 | per year |
| 1 Year Full Access | $39.99 | per year |

**What reviewers like**

- 🚀 Convenient and always available
- ⚙️ Comprehensive construction calculations
- 💪 Industry-standard tool
- 🔍 Accurate and reliable
- 📱 Integrates well with mobile devices

**What reviewers complain about**

- 💰 Subscription model too expensive
- 🔒 Locks data behind subscription
- 🔄 Forced to re-purchase after device changes
- 🔍 Lacks full metric support
- 🔧 Occasional UI/UX issues

**Reported bugs**

- Crashes or freezes on certain devices
- Calculation errors in some scenarios
- Inconsistent behavior after updates

**Requested features**

- Add metric unit support
- Offer one-time purchase option
- Improve backup and data transfer
- Add more customization options
- Enhance overall user experience


### Lumen Layout

[App page](https://appshunter.io/ios/app/lumen-layout/id6739475851)

This app helps calculate pot light layouts for rooms. It offers basic and advanced modes for quick or precise planning, providing coordinates and diagrams for each light. Streamline your lighting design process with this user-friendly tool.

**Highlights:** Pot light layout calculation, Basic and advanced modes, Customizable room dimensions, Light spacing options, Individual light coordinates, Diagrammatic reference

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Construction Master Pro Calc free?

Construction Master Pro Calc is free to download, with in-app purchases available.

### Is Lumen Layout free?

Lumen Layout costs $4.99, with no in-app purchases.

### Which has better reviews, Construction Master Pro Calc or Lumen Layout?

Construction Master Pro Calc is rated higher. Construction Master Pro Calc averages 4.8 out of 5 from 41K ratings, while Lumen Layout averages 1.0 from 1 ratings.

### Do Construction Master Pro Calc or Lumen Layout have ads?

Neither Construction Master Pro Calc nor Lumen Layout shows ads.

### Which is updated more often, Construction Master Pro Calc or Lumen Layout?

Construction Master Pro Calc ships an update every 3 weeks, and Lumen Layout every 3 months. Most recently, Construction Master Pro Calc was updated on November 9, 2026 and Lumen Layout on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*