# Construction Calculator A1 vs Road Inspector

The clearest difference is in-app purchases: Road Inspector at none against Construction Calculator A1's 6. Road Inspector also leads on update cadence (every 3 days vs monthly). Construction Calculator A1's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.7). On price and ads there is nothing between them.

Both are free to download. Construction Calculator A1 sells 6 in-app purchases, starting at $2.99 per month. Road Inspector asks for nothing beyond the download.

Construction Calculator A1 ships an update monthly, Road Inspector every 3 days. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Construction Calculator A1 | Road Inspector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (29 ratings)](https://appshunter.io/ios/app/construction-calculator-a1/id1589484051/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 182 MB | 65 MB |
| Requires iOS | **15.0** | 17.7 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) | [Tarun Kandregula](https://appshunter.io/developer/1875299021) |

## What reviewers say

### Construction Calculator A1

[App page](https://appshunter.io/ios/app/construction-calculator-a1/id1589484051)

This comprehensive tool offers over 500 construction calculators, from basic material quantities to complex bills of quantities. It generates automatic drawings, manages material prices, and provides learning resources for civil engineers and contractors.

**Highlights:** 500+ construction calculators, Concrete, rebar, and steel calculations, Feet-inch calculator, Bill of Quantities (BOQ), Automatic drawings, Material price library, Unit converter

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro access monthly subscription | $2.99 | per month |
| Pro access yearly subscription | $24.99 | per year |
| 100 AI Credits | $0.99 | one-time |
| 500 AI credits | $3.99 | one-time |
| 500 AI credits | $9.99 | one-time |
| Lifetime Access | $39.99 | one-time |


### Road Inspector

[App page](https://appshunter.io/ios/app/road-inspector/id6764894060)

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

**In-app purchases:** none


## Frequently asked questions

### Is Construction Calculator A1 free?

Construction Calculator A1 is free to download, with in-app purchases available.

### Is Road Inspector free?

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

### Do Construction Calculator A1 or Road Inspector have ads?

Both Construction Calculator A1 and Road Inspector show ads.

### Which is updated more often, Construction Calculator A1 or Road Inspector?

Construction Calculator A1 ships an update monthly, and Road Inspector every 3 days. Most recently, Construction Calculator A1 was updated on November 7, 2026 and Road Inspector 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.*