# Construction Calculator vs Atmozen

The clearest difference is in-app purchases: Atmozen at none against Construction Calculator's 9. Atmozen also leads on rating (5.0 vs 4.7) and iOS requirement (13.0 vs 16.4). Construction Calculator's advantage is update cadence (every 5 days vs every 2 months) and ratings volume (685 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Construction Calculator sells 8 in-app purchases, starting at $4.99 per month. Atmozen asks for nothing beyond the download.

Atmozen holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Construction Calculator has 685 ratings behind it against 1, so its average is the more settled of the two.

Construction Calculator ships an update every 5 days, Atmozen every 2 months. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Construction Calculator | Atmozen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (685 ratings)](https://appshunter.io/ios/app/construction-calculator/id1092417398/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/atmozen/id6553983947/reviews)** |
| Number of ratings | **685** | 1 |
| Positive reviews | 62.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 158 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Atmoce Holding B.V.](https://appshunter.io/developer/1758049750) |

## What reviewers say

### Construction Calculator

[App page](https://appshunter.io/ios/app/construction-calculator/id1092417398)

This tool simplifies complex construction calculations, offering conversions between various measurement formats. It provides an elegant interface for users in construction, woodworking, and education to perform and check calculations.

**Highlights:** Feet Inch Fraction calculations, Decimal to fraction conversion, Fraction to decimal conversion, Supports multiple dimensional formats, Elegant and intuitive interface, Advanced editing capabilities

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Construction Calculator | $4.99 | per month |
| Construction Calculator | $39.99 | per year |
| Themes | $1.99 | one-time |
| Calculator Plus | $3.99 | one-time |
| Rafter | $4.99 | one-time |
| Stair Calculator | $4.99 | one-time |
| Fraction Calculator | $9.99 | one-time |
| Construction Calculator | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and accurate calculations
- 💡 Helpful for construction work
- 🎨 Customizable colors

**What reviewers complain about**

- 💰 Subscription model is too expensive
- 🔒 Paywall locks out useful features
- 🔄 Forced updates break existing functionality
- 🤯 Confusing and difficult to navigate

**Reported bugs**

- Calculation errors and incorrect results
- Freezing and crashing on certain devices
- Compatibility issues with newer OS versions

**Requested features**

- Bring back fraction display in results
- Allow offline use without subscription
- Add more construction-specific tools
- Improve user interface and usability


### Atmozen

[App page](https://appshunter.io/ios/app/atmozen/id6553983947)

Monitor the operational status of solar sites with this app. It offers features for site access, device monitoring, alerts, and settings management. Access a support center for assistance.

**Highlights:** Site access, Device monitoring, Alerting system, Site settings, Support center

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

**In-app purchases:** none


## Frequently asked questions

### Is Construction Calculator free?

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

### Is Atmozen free?

Atmozen is free to download, with no in-app purchases.

### Which has better reviews, Construction Calculator or Atmozen?

Atmozen is rated higher. Construction Calculator averages 4.7 out of 5 from 685 ratings, while Atmozen averages 5.0 from 1 ratings.

### Do Construction Calculator or Atmozen have ads?

Neither Construction Calculator nor Atmozen shows ads.

### Which is updated more often, Construction Calculator or Atmozen?

Construction Calculator ships an update every 5 days, and Atmozen every 2 months. Most recently, Construction Calculator was updated on November 13, 2026 and Atmozen on November 12, 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.*