# AcuiZen vs Construction Calc

The clearest difference is in-app purchases: AcuiZen at none against Construction Calc's 1. AcuiZen also leads on update cadence (every 11 days vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Construction Calc sells 1 one-off in-app purchase. AcuiZen asks for nothing beyond the download.

AcuiZen ships an update every 11 days, Construction Calc every 3 months. The most recent releases landed on October 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AcuiZen | Construction Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/construction-calc-estimator/id6755724882/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | — | Free |
| Size | 36 MB | 3 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ACUIZEN TECHNOLOGIES SINGAPORE PTE. LTD.](https://appshunter.io/developer/1438003775) | [Konstantin Khoroshun](https://appshunter.io/developer/1476700024) |

## What reviewers say

### AcuiZen

[App page](https://appshunter.io/ios/app/acuizen/id1438003776)

**Features:** macOS Compatibility

**In-app purchases:** none


### Construction Calc

[App page](https://appshunter.io/ios/app/construction-calc-estimator/id6755724882)

This offline calculator helps construction professionals and DIYers quickly estimate materials for various projects. It supports imperial and metric units, and all calculations are stored locally for privacy.  No internet connection is required.

**Highlights:** Offline material estimation, Calculates 8 key materials, Feet-Inch-Fraction input, Imperial & Metric units, Local data storage, No subscriptions or ads

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $0.99 | one-time |


## Frequently asked questions

### Is AcuiZen free?

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

### Is Construction Calc free?

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

### Do AcuiZen or Construction Calc have ads?

Neither AcuiZen nor Construction Calc shows ads.

### Which is updated more often, AcuiZen or Construction Calc?

AcuiZen ships an update every 11 days, and Construction Calc every 3 months. Most recently, AcuiZen was updated on October 3, 2026 and Construction Calc on October 28, 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.*