# Construction Master Pro Calc vs Slope Calculator & Tools

The clearest difference is ads: Construction Master Pro Calc at none against Slope Calculator & Tools's shown. Construction Master Pro Calc also leads on ratings volume (41K vs 2) and update cadence (every 3 weeks vs every 2 months). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Construction Master Pro Calc sells 4 in-app purchases, starting at $4.99 per month and Slope Calculator & Tools sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Slope Calculator & Tools holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Construction Master Pro Calc has 41K ratings behind it against 2, so its average is the more settled of the two.

Construction Master Pro Calc ships an update every 3 weeks, Slope Calculator & Tools every 2 months. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Construction Master Pro Calc | Slope Calculator & Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (41K ratings)](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/slope-calculator-and-tools/id6767999229/reviews)** |
| Number of ratings | **41K** | 2 |
| Positive reviews | 60.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#52** | — |
| Size | 111 MB | 6 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Do Tri](https://appshunter.io/developer/846531282) |

## What reviewers say

### Construction Master Pro Calc

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

**Currently charting:** #52 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


### Slope Calculator & Tools

[App page](https://appshunter.io/ios/app/slope-calculator-and-tools/id6767999229)

This professional construction calculator assists with precise measurements for slopes, roof pitches, stairs, ramps, and grading. It offers instant calculations with live diagrams and supports both imperial and metric units for various construction and DIY projects.

**Highlights:** Slope calculation with live diagrams, Roof pitch and area calculation, Stair planning and comfort analysis, ADA ramp compliance checks, Grade and triangle solving, Unit and feet-inch conversion, Cut & fill volume estimation, Save and organize projects

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $5.99 | 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 Slope Calculator & Tools free?

Slope Calculator & Tools is free to download, with in-app purchases available.

### Which has better reviews, Construction Master Pro Calc or Slope Calculator & Tools?

Slope Calculator & Tools is rated higher. Construction Master Pro Calc averages 4.8 out of 5 from 41K ratings, while Slope Calculator & Tools averages 5.0 from 2 ratings.

### Do Construction Master Pro Calc or Slope Calculator & Tools have ads?

Slope Calculator & Tools shows ads; Construction Master Pro Calc does not.

### Which is updated more often, Construction Master Pro Calc or Slope Calculator & Tools?

Construction Master Pro Calc ships an update every 3 weeks, and Slope Calculator & Tools every 2 months. Most recently, Construction Master Pro Calc was updated on November 9, 2026 and Slope Calculator & Tools on October 31, 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.*