# Construction Master 5 Calc vs RedX Decks

The clearest difference is review sentiment: Construction Master 5 Calc at 68% against RedX Decks's 31%. Construction Master 5 Calc also leads on rating (4.8 vs 4.3) and ratings volume (13K vs 528). RedX Decks's advantage is update cadence (every 10 days vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Construction Master 5 Calc sells 2 in-app purchases, starting at $3.99 per month and RedX Decks sells 9 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Construction Master 5 Calc holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Construction Master 5 Calc has 13K ratings behind it against 528, so its average is the more settled of the two. Written reviews point the same way: 68% of Construction Master 5 Calc's written reviews are positive against 31% of RedX Decks's.

Construction Master 5 Calc ships an update every 3 months, RedX Decks every 10 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Construction Master 5 Calc | RedX Decks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13K ratings)](https://appshunter.io/ios/app/construction-master-5-calc/id370412148/reviews)** | [4.3 (528 ratings)](https://appshunter.io/ios/app/redx-decks-3d-deck-builder/id6474487367/reviews) |
| Number of ratings | **13K** | 528 |
| Positive reviews | **67.9% of reviews** | 30.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#182** | — |
| Size | 73 MB | 177 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [RedX Technology Inc](https://appshunter.io/developer/835492291) |

## What reviewers say

### Construction Master 5 Calc

[App page](https://appshunter.io/ios/app/construction-master-5-calc/id370412148)

**Currently charting:** #182 Top Grossing · Utilities (US App Store)

This app is a powerful feet-inch-fraction calculator designed for construction professionals. It offers advanced calculation capabilities for layouts, bids, and estimates, simplifying complex measurements and conversions for enhanced project accuracy and efficiency.

**Highlights:** Feet-inch-fraction calculations, Right angle and rafter calculations, Area and volume solutions, Board feet and cost per unit, Dimensional math and conversions, Save or email calculations, Context-sensitive help

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Full Access | $3.99 | per month |
| 1 Year Full Access | $34.99 | per year |

**What reviewers like**

- 👍 Convenient to have on phone
- 💡 Useful for construction work
- 🚀 Performs like physical calculator
- 👍 Helpful for calculations and estimates
- 👍 Great tool for framers and carpenters

**What reviewers complain about**

- 💰 Expensive subscription model
- 🤔 Prefer one-time purchase option
- 🤔 Subscription cost as much as physical calculator
- 🤔 Should allow trial before subscription
- 🐛 Issues with restoring purchases

**Reported bugs**

- App not working without internet connection
- Crashes or freezes on some devices
- Login/purchase issues when switching devices

**Requested features**

- Add Apple Watch support
- Offer one-time purchase option
- Improve compatibility with older devices
- Provide a free version with limited features


### RedX Decks

[App page](https://appshunter.io/ios/app/redx-decks-3d-deck-builder/id6474487367)

Design and visualize complex deck structures, including roofs and stairs, with automatic framing and structural calculations. Generate professional, permit-ready blueprints and detailed material lists for efficient construction.

**Highlights:** 3D deck and roof design, Automatic framing layouts, Structural calculations, Permit-ready blueprints, Material and cut lists, 3D visualization and renders

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RedX Decks Pro | $6.99 | per month |
| RedX Apps Pro++ Monthly | $9.99 | per month |
| RedX Apps Pro++ | $59.99 | per year |
| RedX Decks Pro | $89.99 | per year |
| RedX Decks Pro | $119.99 | per year |
| RedX Apps Bundle | $179.99 | per year |
| 20 Render Credits | $9.99 | one-time |
| 100 Render Credits | $29.99 | one-time |
| 200 Render Credits | $44.99 | one-time |


## Frequently asked questions

### Is Construction Master 5 Calc free?

Construction Master 5 Calc is free to download, with in-app purchases available.

### Is RedX Decks free?

RedX Decks is free to download, with in-app purchases available.

### Which has better reviews, Construction Master 5 Calc or RedX Decks?

Construction Master 5 Calc is rated higher. Construction Master 5 Calc averages 4.8 out of 5 from 13K ratings, while RedX Decks averages 4.3 from 528 ratings.

### Do Construction Master 5 Calc or RedX Decks have ads?

Neither Construction Master 5 Calc nor RedX Decks shows ads.

### Which is updated more often, Construction Master 5 Calc or RedX Decks?

Construction Master 5 Calc ships an update every 3 months, and RedX Decks every 10 days. Most recently, Construction Master 5 Calc was updated on October 15, 2026 and RedX Decks on October 14, 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.*