# Construction Calculator A1 vs Auto RC

The clearest difference is in-app purchases: Construction Calculator A1 at none against Auto RC's 8. Construction Calculator A1 also leads on rating (4.8 vs 4.5) and ratings volume (26 vs 6). Auto RC's advantage is ads (none vs shown) and review sentiment (75% vs 67%). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Auto RC sells 8 in-app purchases, starting at $9.99 per month. Construction Calculator A1 asks for nothing beyond the download.

Construction Calculator A1 holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 26 and 6 respectively. Written reviews complicate that: 67% of Construction Calculator A1's written reviews are positive against 75% of Auto RC's, so the app with the better star average is not the one people write more warmly about.

Construction Calculator A1 ships an update every 4 weeks, Auto RC every 3 weeks. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Construction Calculator A1 | Auto RC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (26 ratings)](https://appshunter.io/ios/app/construction-calculator-a1/id1589484051/reviews)** | [4.5 (6 ratings)](https://appshunter.io/ios/app/auto-rc-structural-design/id6451228272/reviews) |
| Number of ratings | **26** | 6 |
| Positive reviews | 66.7% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | **Ad-supported** | Freemium |
| Size | 161 MB | 76 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) | [vachiraphun mekvarmdee](https://appshunter.io/developer/1697257272) |

## What reviewers say

### Construction Calculator A1

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

This app provides specialized calculators for construction professionals, including concrete, rebar, and area/volume calculations. It offers material quantity estimation, unit conversion, and professional features like BOQ export and project organization. Designed for contractors, builders, and engineers on job sites worldwide.

**Highlights:** Concrete material quantity calculation, Rebar bending schedule and weight calculation, Feet-inch arithmetic without decimal conversion, Area and volume calculations for 15+ shapes, Construction-specific unit conversions, Bill of Quantities (BOQ) export to PDF/Excel, Save and organize calculations by project

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

**In-app purchases:** none


### Auto RC

[App page](https://appshunter.io/ios/app/auto-rc-structural-design/id6451228272)

This app transforms structural design into a superpower by automatically generating beam layouts from floor plans using AI. It offers tools for analyzing and designing structural elements, with advanced features for full building modeling and detailed exports available through a subscription.

**Highlights:** AI-powered floor plan scanning, Automatic beam layout generation, 3D rebar detailing, Full building structural modeling, 3D structural analysis, Exportable calculation reports and CAD plans

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| สมัครสมาชิกรายเดือน | $9.99 | per month |
| สมัครสมาชิกรายปี | $99.99 | per year |
| Export IFC model file | $2.99 | one-time |
| Export structural model file | $2.99 | one-time |
| สมัครสมาชิกแบบไม่ต่ออายุ | $4.99 | one-time |
| Export structural model file | $4.99 | one-time |
| Export structural model file | $7.99 | one-time |
| Export structural model file | $9.99 | one-time |


## Frequently asked questions

### Is Construction Calculator A1 free?

Construction Calculator A1 is free to download, with no in-app purchases.

### Is Auto RC free?

Auto RC is free to download, with in-app purchases available.

### Which has better reviews, Construction Calculator A1 or Auto RC?

Construction Calculator A1 is rated higher. Construction Calculator A1 averages 4.8 out of 5 from 26 ratings, while Auto RC averages 4.5 from 6 ratings.

### Do Construction Calculator A1 or Auto RC have ads?

Construction Calculator A1 shows ads; Auto RC does not.

### Which is updated more often, Construction Calculator A1 or Auto RC?

Construction Calculator A1 ships an update every 4 weeks, and Auto RC every 3 weeks. Most recently, Construction Calculator A1 was updated on October 15, 2026 and Auto RC on October 16, 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.*