# Measures Unit Converter vs Construction Master Pro Calc

The clearest difference is price: Construction Master Pro Calc at Free against Measures Unit Converter's $1.99. Construction Master Pro Calc also leads on rating (4.8 vs 4.4) and ratings volume (40K vs 30). Measures Unit Converter's advantage is review sentiment (91% vs 60%) and update cadence (every 8 days vs every 3 weeks). On ads, in-app purchases, monetization model and device support there is nothing between them.

Construction Master Pro Calc is free to download; Measures Unit Converter costs $1.99 up front. Measures Unit Converter sells 4 one-off in-app purchases and Construction Master Pro Calc sells 12 in-app purchases, starting at $3.69 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 4.4. That said, the two scores are not equally well evidenced: Construction Master Pro Calc has 40K ratings behind it against 30, so its average is the more settled of the two. Written reviews complicate that: 91% of Measures Unit Converter'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.

Measures Unit Converter ships an update every 8 days, Construction Master Pro Calc every 3 weeks. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Measures Unit Converter | Construction Master Pro Calc |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.4 (30 ratings)](https://appshunter.io/ios/app/measures-unit-converter/id287918318/reviews) | **[4.8 (40K ratings)](https://appshunter.io/ios/app/construction-master-pro-calc/id370406446/reviews)** |
| Number of ratings | 30 | **40K** |
| Positive reviews | **91.4% of reviews** | 60.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#48** |
| Size | 18 MB | 111 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Neuwert Media GmbH](https://appshunter.io/developer/287918321) | [Calculated Industries](https://appshunter.io/developer/370406449) |

## What reviewers say

### Measures Unit Converter

[App page](https://appshunter.io/ios/app/measures-unit-converter/id287918318)

This app offers a comprehensive unit conversion tool with over 971 units across 40 categories, including 173 currencies with real-time exchange rates. It features an intuitive interface, a scientific calculator, and offline functionality, making it ideal for precise conversions.

**Highlights:** 971 units across 40 categories, 173 currencies with real-time rates, Offline conversion functionality, Scientific calculator, Intuitive redesigned interface, Customizable themes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $1.99 | one-time |
| Breakfast | $4.99 | one-time |
| Lunch | $9.99 | one-time |
| Dinner | $19.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive interface
- 🚀 Comprehensive range of conversions
- 💡 Customizable unit selection
- 🔍 Accurate and up-to-date currency rates
- 🔢 Handy built-in calculator

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔀 Cumbersome navigation for some conversions
- 🔍 Lack of customization options for some units
- 💤 Outdated or inaccurate conversion factors in some cases

**Reported bugs**

- Crashes on launch with iOS 7.0.2
- Inconsistent behavior when changing units in calculator

**Requested features**

- Add ability to swap conversion directions
- Improve currency conversion to show tourist rates
- Expand RF/frequency conversion options
- Add support for more advanced unit types (e.g. wind chill, biblical currencies)


### Construction Master Pro Calc

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

**Currently charting:** #48 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 Measures Unit Converter free?

Measures Unit Converter costs $1.99, and also offers 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, Measures Unit Converter or Construction Master Pro Calc?

Construction Master Pro Calc is rated higher. Measures Unit Converter averages 4.4 out of 5 from 30 ratings, while Construction Master Pro Calc averages 4.8 from 40K ratings.

### Do Measures Unit Converter or Construction Master Pro Calc have ads?

Neither Measures Unit Converter nor Construction Master Pro Calc shows ads.

### Which is updated more often, Measures Unit Converter or Construction Master Pro Calc?

Measures Unit Converter ships an update every 8 days, and Construction Master Pro Calc every 3 weeks. Most recently, Measures Unit Converter was updated on October 16, 2026 and Construction Master Pro Calc on October 17, 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.*