# Construction Master 5 Calc vs Stair Calculator

The clearest difference is review sentiment: Construction Master 5 Calc at 68% against Stair Calculator's 21%. Construction Master 5 Calc also leads on rating (4.8 vs 4.1) and ratings volume (13K vs 740). On price, update cadence, ads and in-app purchases 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 Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. 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 4.1. That said, the two scores are not equally well evidenced: Construction Master 5 Calc has 13K ratings behind it against 740, 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 21% of Stair Calculator's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Construction Master 5 Calc | Stair Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13K ratings)](https://appshunter.io/ios/app/construction-master-5-calc/id370412148/reviews)** | [4.1 (740 ratings)](https://appshunter.io/ios/app/stair-calculator-construction/id1493037366/reviews) |
| Number of ratings | **13K** | 740 |
| Positive reviews | **67.9% of reviews** | 21.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#181** | — |
| Size | 73 MB | 1 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) |

## What reviewers say

### Construction Master 5 Calc

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

**Currently charting:** #181 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


### Stair Calculator

[App page](https://appshunter.io/ios/app/stair-calculator-construction/id1493037366)

This app calculates essential parameters for stair construction, offering flexibility in input and providing multiple step set options. It supports various units and allows results to be easily copied.

**Highlights:** Calculate stair construction parameters, Flexible input for Run or Total Run, Determine largest and smallest step sets, Support for various units, Copy results to clipboard

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Premium Package | $9.99 | per year |
| Unlock all features | $5.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful information
- 🚀 Provides useful calculations

**What reviewers complain about**

- 🐛 Doesn't work as expected
- 🔒 No way to cancel subscription
- 🔒 Difficult to cancel trial
- 🤬 Obnoxious ads
- 🤬 Misleading as a learning tool

**Reported bugs**

- Subscription numbers don't add up
- Doesn't provide promised features after purchase

**Requested features**

- Option to uninstall app
- Ability to calculate run based on rise and landing space
- Provide more detailed diagrams and visuals


## Frequently asked questions

### Is Construction Master 5 Calc free?

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

### Is Stair Calculator free?

Stair Calculator is free to download, with in-app purchases available.

### Which has better reviews, Construction Master 5 Calc or Stair Calculator?

Construction Master 5 Calc is rated higher. Construction Master 5 Calc averages 4.8 out of 5 from 13K ratings, while Stair Calculator averages 4.1 from 740 ratings.

### Do Construction Master 5 Calc or Stair Calculator have ads?

Neither Construction Master 5 Calc nor Stair Calculator shows ads.

### Which is updated more often, Construction Master 5 Calc or Stair Calculator?

Construction Master 5 Calc ships an update every 3 months, and Stair Calculator every 3 months. Most recently, Construction Master 5 Calc was updated on October 29, 2026 and Stair Calculator 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.*