# 致赋OA vs Construction Calculator Al

The clearest difference is in-app purchases: 致赋OA at none against Construction Calculator Al's 4. 致赋OA also leads on ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Construction Calculator Al sells 4 in-app purchases, starting at $6.99 per month. 致赋OA asks for nothing beyond the download.

致赋OA ships an update every 9 days, Construction Calculator Al every 3 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 致赋OA | Construction Calculator Al |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/construction-calculator-al/id6744296879/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 70 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [广州鸿翼智能科技有限公司](https://appshunter.io/developer/1480806905) | [MUCAHIT RAMAZAN SAROGLU](https://appshunter.io/developer/1825910422) |

## What reviewers say

### 致赋OA

[App page](https://appshunter.io/ios/app/oa/id6593671792)

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

**In-app purchases:** none


### Construction Calculator Al

[App page](https://appshunter.io/ios/app/construction-calculator-al/id6744296879)

This AI-powered tool simplifies construction calculations with instant results, material-saving recommendations, and cost estimations. It offers 15 types of calculations, supports 12 languages, and includes an offline mode for use anywhere. Premium features provide an ad-free experience and full AI assistant access.

**Highlights:** AI-powered calculations, Material saving recommendations, Cost estimation, 15 calculation types, Offline mode, PDF sharing, Unit converter

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Construction Calculation AI | $6.99 | per month |
| Construction Calculation AI | $59.99 | per year |
| Construction Calculation AI | $69.99 | per year |
| Construction Calculation AI | $9.99 | one-time |


## Frequently asked questions

### Is 致赋OA free?

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

### Is Construction Calculator Al free?

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

### Do 致赋OA or Construction Calculator Al have ads?

Construction Calculator Al shows ads; 致赋OA does not.

### Which is updated more often, 致赋OA or Construction Calculator Al?

致赋OA ships an update every 9 days, and Construction Calculator Al every 3 weeks. Most recently, 致赋OA was updated on October 7, 2026 and Construction Calculator Al on October 9, 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.*