# inchCALC+ vs Construction Master Pro Calc

The clearest difference is price: Construction Master Pro Calc at Free against inchCALC+'s $4.99. Construction Master Pro Calc also leads on rating (4.8 vs 3.7) and ratings volume (40K vs 17). inchCALC+'s advantage is in-app purchases (none vs 20) and review sentiment (74% vs 60%). On ads and device support there is nothing between them.

Construction Master Pro Calc is free to download; inchCALC+ costs $4.99 up front. Construction Master Pro Calc sells 12 in-app purchases, starting at $3.69 per month. inchCALC+ asks for nothing beyond the download.

Construction Master Pro Calc holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Construction Master Pro Calc has 40K ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 74% of inchCALC+'s written reviews are positive against 60% of Construction Master Pro Calc's, so the app with the better star average is not the one people write more warmly about.

inchCALC+ ships an update every 2 months, Construction Master Pro Calc every 3 weeks. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | inchCALC+ | Construction Master Pro Calc |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.7 (17 ratings)](https://appshunter.io/ios/app/inchcalc-plus/id293843441/reviews) | **[4.8 (40K ratings)](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446/reviews)** |
| Number of ratings | 17 | **40K** |
| Positive reviews | **74.4% of reviews** | 59.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#47** |
| Size | 19 MB | 111 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [River Studio](https://appshunter.io/developer/293841499) | [Calculated Industries](https://appshunter.io/developer/370406449) |

## What reviewers say

### inchCALC+

[App page](https://appshunter.io/ios/app/inchcalc-plus/id293843441)

This app is a professional-level calculator designed for working with feet, inches, and fractions, commonly used in construction and DIY projects. It simplifies complex calculations like addition, subtraction, multiplication, and division of these dimensions, transforming your device into a powerful measurement tool.

**Highlights:** Feet, inch, fraction calculations, Conversions to various units, Triangle function for rise, run, diagonal, pitch, Dual modes for simple and complex problems, Selective keyboard orientation, Built-in math functions (sqrt, square, pi, percent)

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

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent for feet and inches calculations
- 👍 Great for metric/imperial conversion
- 👍 Practical and easy to use
- 👍 Replaces expensive physical calculators
- 👍 Smooth calculations and easy unit conversion

**What reviewers complain about**

- 🐛 Crashes on newer iOS versions
- 🐛 Not worth the money compared to free apps
- 🐛 Missing simple but crucial features
- 🐛 Outdated UI, not optimized for modern screens
- 🐛 Buttons too small on landscape screen

**Reported bugs**

- Crashes on iOS 14.2
- Does not recognize numbers 1, 2, 3 in landscape on mini2 retina
- App freezes in landscape mode
- Latest update does not download on iPhone 3GS
- Not updated to fit any screen since iPhone 4

**Requested features**

- Add a tape-like function
- Improve vertical calculator conversion settings
- Add a history view option
- Allow storing and further calculation with results
- Add a backspace key


### 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 (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


## Frequently asked questions

### Is inchCALC+ free?

inchCALC+ costs $4.99, with no in-app purchases.

### Is Construction Master Pro Calc free?

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

### Which has better reviews, inchCALC+ or Construction Master Pro Calc?

Construction Master Pro Calc is rated higher. inchCALC+ averages 3.7 out of 5 from 17 ratings, while Construction Master Pro Calc averages 4.8 from 40K ratings.

### Do inchCALC+ or Construction Master Pro Calc have ads?

Neither inchCALC+ nor Construction Master Pro Calc shows ads.

### Which is updated more often, inchCALC+ or Construction Master Pro Calc?

inchCALC+ ships an update every 2 months, and Construction Master Pro Calc every 3 weeks. Most recently, inchCALC+ was updated on October 8, 2026 and Construction Master Pro Calc on October 16, 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.*