# Construction Master Pro Calc vs Roof Guide

The clearest difference is rating: Construction Master Pro Calc at 4.8 against Roof Guide's 4.0. Construction Master Pro Calc also leads on ratings volume (40K vs 19) and chart position (#49 vs unranked). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Construction Master Pro Calc sells 12 in-app purchases, starting at $3.69 per month and Roof Guide sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Construction Master Pro Calc holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Construction Master Pro Calc has 40K ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 60% of Construction Master Pro Calc's written reviews are positive against 64% of Roof Guide's, so the app with the better star average is not the one people write more warmly about.

Construction Master Pro Calc ships an update every 3 weeks, Roof Guide every 2 weeks. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Construction Master Pro Calc | Roof Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (40K ratings)](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446/reviews)** | [4.0 (19 ratings)](https://appshunter.io/ios/app/roof-guide-carpentry-calc/id920670842/reviews) |
| Number of ratings | **40K** | 19 |
| Positive reviews | 60.4% of reviews | **63.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#49** | — |
| Size | 111 MB | 31 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Infoguide Pty Ltd](https://appshunter.io/developer/920670841) |

## What reviewers say

### Construction Master Pro Calc

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

**Currently charting:** #49 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 (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Full Access | $3.69 | per month |
| 1 Month Full Access | $4.99 | per month |
| 1 Month Full Access | $4.99 | per month |
| 1 Month Full Access | $4.99 | per month |
| CMPro Full Access | $9.99 | per year |
| 6 Months Full Access | $19.99 | per 6 months |
| 1 Year Full Access | $19.99 | per year |
| 1 Year Full Access | $29.99 | per year |
| 1 Year Full Access | $39.99 | per year |
| 1 Year Full Access | $39.99 | per year |
| 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


### Roof Guide

[App page](https://appshunter.io/ios/app/roof-guide-carpentry-calc/id920670842)

This app provides specialized calculators for roofing, framing, decking, stairs, and concrete projects. It helps construction professionals estimate quantities, costs, and set out materials accurately using US or metric measurements.

**Highlights:** Roof framing calculations, Decking and flooring estimator, Stud wall setout and costing, Stair framing calculations, Concrete volume and cost estimator, Metric and imperial unit conversion

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| 6 Months | $7.99 | per 6 months |
| Annual | $12.99 | per year |
| Lifetime License | $29.99 | one-time |


## Frequently asked questions

### Is Construction Master Pro Calc free?

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

### Is Roof Guide free?

Roof Guide is free to download, with in-app purchases available.

### Which has better reviews, Construction Master Pro Calc or Roof Guide?

Construction Master Pro Calc is rated higher. Construction Master Pro Calc averages 4.8 out of 5 from 40K ratings, while Roof Guide averages 4.0 from 19 ratings.

### Do Construction Master Pro Calc or Roof Guide have ads?

Neither Construction Master Pro Calc nor Roof Guide shows ads.

### Which is updated more often, Construction Master Pro Calc or Roof Guide?

Construction Master Pro Calc ships an update every 3 weeks, and Roof Guide every 2 weeks. Most recently, Construction Master Pro Calc was updated on November 1, 2026 and Roof Guide on October 24, 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.*