# Construction Calculator vs MDI AI Detection

The clearest difference is in-app purchases: MDI AI Detection at none against Construction Calculator's 2. MDI AI Detection also leads on update cadence (weekly vs every 5 months). Construction Calculator's advantage is iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Construction Calculator sells 2 in-app purchases, starting at $4.99 per 7 days. MDI AI Detection asks for nothing beyond the download.

Construction Calculator ships an update every 5 months, MDI AI Detection weekly. Both last shipped on October 30, 2026.

## The numbers

| Metric | Construction Calculator | MDI AI Detection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mdi-ai-detection/id6753718347/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | — | Free |
| Size | 62 MB | 40 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mahesh Bansode](https://appshunter.io/developer/1804566389) | [MDISecurity](https://appshunter.io/developer/1787169579) |

## What reviewers say

### Construction Calculator

[App page](https://appshunter.io/ios/app/construction-calculator-rulr/id6752625035)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


### MDI AI Detection

[App page](https://appshunter.io/ios/app/mdi-ai-detection/id6753718347)

This security camera companion app uses advanced AI to transform standard cameras into smart detection devices. It alerts you to critical events like unauthorized entry, weapon presence, and license plate identification in real-time, offering peace of mind.

**Highlights:** AI-powered event detection, Real-time notifications, Weapon/gun detection, Unauthorized entry alerts, License plate identification, Aggressive behavior sensing

**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 MDI AI Detection free?

MDI AI Detection is free to download, with no in-app purchases.

### Do Construction Calculator or MDI AI Detection have ads?

Neither Construction Calculator nor MDI AI Detection shows ads.

### Which is updated more often, Construction Calculator or MDI AI Detection?

Construction Calculator ships an update every 5 months, and MDI AI Detection weekly. Most recently, Construction Calculator was updated on October 30, 2026 and MDI AI Detection on October 30, 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.*