# Construction Master 5 Calc vs EPA 608 Certification Prep

The clearest difference is update cadence: EPA 608 Certification Prep at every 2 weeks against Construction Master 5 Calc's every 3 months. Construction Master 5 Calc's advantage is chart position (#181 vs unranked) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support 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 EPA 608 Certification Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Construction Master 5 Calc ships an update every 3 months, EPA 608 Certification Prep every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Construction Master 5 Calc | EPA 608 Certification Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13K ratings)](https://appshunter.io/ios/app/construction-master-5-calc/id370412148/reviews)** | — |
| Number of ratings | **13K** | — |
| Positive reviews | 68.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#181** | — |
| Size | 73 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858) |

## 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


### EPA 608 Certification Prep

[App page](https://appshunter.io/ios/app/epa-608-certification-prep/id6762461807)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Certification Prep | $9.99 | 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 EPA 608 Certification Prep free?

EPA 608 Certification Prep is free to download, with in-app purchases available.

### Do Construction Master 5 Calc or EPA 608 Certification Prep have ads?

Neither Construction Master 5 Calc nor EPA 608 Certification Prep shows ads.

### Which is updated more often, Construction Master 5 Calc or EPA 608 Certification Prep?

Construction Master 5 Calc ships an update every 3 months, and EPA 608 Certification Prep every 2 weeks. Most recently, Construction Master 5 Calc was updated on November 3, 2026 and EPA 608 Certification Prep 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.*